81708120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 288

約数和(自身を含む): 308318400

約数和(自身を除く): 226610280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 51, 52, 60, 65, 68, 72, 78, 79, 85, 90, 102, 104, 117, 120, 130, 136, 153, 156, 158, 169, 170, 180, 195, 204, 221, 234, 237, 255, 260, 306, 312, 316, 338, 340, 360, 390, 395, 408, 442, 468, 474, 507, 510, 520, 585, 612, 632, 663, 676, 680, 711, 765, 780, 790, 845, 884, 936, 948, 1014, 1020, 1027, 1105, 1170, 1185, 1224, 1326, 1343, 1352, 1422, 1521, 1530, 1560, 1580, 1690, 1768, 1896, 1989, 2028, 2040, 2054, 2210, 2340, 2370, 2535, 2652, 2686, 2844, 2873, 3042, 3060, 3081, 3160, 3315, 3380, 3555, 3978, 4029, 4056, 4108, 4420, 4680, 4740, 5070, 5135, 5304, 5372, 5688, 5746, 6084, 6120, 6162, 6630, 6715, 6760, 7110, 7605, 7956, 8058, 8216, 8619, 8840, 9243, 9480, 9945, 10140, 10270, 10744, 11492, 12087, 12168, 12324, 13260, 13351, 13430, 14220, 14365, 15210, 15405, 15912, 16116, 17238, 17459, 18486, 19890, 20145, 20280, 20540, 22984, 24174, 24648, 25857, 26520, 26702, 26860, 28440, 28730, 30420, 30810, 32232, 34476, 34918, 36972, 39780, 40053, 40290, 41080, 43095, 46215, 48348, 51714, 52377, 53404, 53720, 57460, 60435, 60840, 61620, 66755, 68952, 69836, 73944, 79560, 80106, 80580, 86190, 87295, 92430, 96696, 103428, 104754, 106808, 114920, 120159, 120870, 123240, 129285, 133510, 139672, 157131, 160212, 161160, 172380, 174590, 184860, 200265, 206856, 209508, 226967, 240318, 241740, 258570, 261885, 267020, 314262, 320424, 344760, 349180, 369720, 400530, 419016, 453934, 480636, 483480, 517140, 523770, 534040, 600795, 628524, 680901, 698360, 785655, 801060, 907868, 961272, 1034280, 1047540, 1134835, 1201590, 1257048, 1361802, 1571310, 1602120, 1815736, 2042703, 2095080, 2269670, 2403180, 2723604, 3142620, 3404505, 4085406, 4539340, 4806360, 5447208, 6285240, 6809010, 8170812, 9078680, 10213515, 13618020, 16341624, 20427030, 27236040, 40854060, 81708120]

約数ペア:

[(1, 81708120), (2, 40854060), (3, 27236040), (4, 20427030), (5, 16341624), (6, 13618020), (8, 10213515), (9, 9078680), (10, 8170812), (12, 6809010), (13, 6285240), (15, 5447208), (17, 4806360), (18, 4539340), (20, 4085406), (24, 3404505), (26, 3142620), (30, 2723604), (34, 2403180), (36, 2269670), (39, 2095080), (40, 2042703), (45, 1815736), (51, 1602120), (52, 1571310), (60, 1361802), (65, 1257048), (68, 1201590), (72, 1134835), (78, 1047540), (79, 1034280), (85, 961272), (90, 907868), (102, 801060), (104, 785655), (117, 698360), (120, 680901), (130, 628524), (136, 600795), (153, 534040), (156, 523770), (158, 517140), (169, 483480), (170, 480636), (180, 453934), (195, 419016), (204, 400530), (221, 369720), (234, 349180), (237, 344760), (255, 320424), (260, 314262), (306, 267020), (312, 261885), (316, 258570), (338, 241740), (340, 240318), (360, 226967), (390, 209508), (395, 206856), (408, 200265), (442, 184860), (468, 174590), (474, 172380), (507, 161160), (510, 160212), (520, 157131), (585, 139672), (612, 133510), (632, 129285), (663, 123240), (676, 120870), (680, 120159), (711, 114920), (765, 106808), (780, 104754), (790, 103428), (845, 96696), (884, 92430), (936, 87295), (948, 86190), (1014, 80580), (1020, 80106), (1027, 79560), (1105, 73944), (1170, 69836), (1185, 68952), (1224, 66755), (1326, 61620), (1343, 60840), (1352, 60435), (1422, 57460), (1521, 53720), (1530, 53404), (1560, 52377), (1580, 51714), (1690, 48348), (1768, 46215), (1896, 43095), (1989, 41080), (2028, 40290), (2040, 40053), (2054, 39780), (2210, 36972), (2340, 34918), (2370, 34476), (2535, 32232), (2652, 30810), (2686, 30420), (2844, 28730), (2873, 28440), (3042, 26860), (3060, 26702), (3081, 26520), (3160, 25857), (3315, 24648), (3380, 24174), (3555, 22984), (3978, 20540), (4029, 20280), (4056, 20145), (4108, 19890), (4420, 18486), (4680, 17459), (4740, 17238), (5070, 16116), (5135, 15912), (5304, 15405), (5372, 15210), (5688, 14365), (5746, 14220), (6084, 13430), (6120, 13351), (6162, 13260), (6630, 12324), (6715, 12168), (6760, 12087), (7110, 11492), (7605, 10744), (7956, 10270), (8058, 10140), (8216, 9945), (8619, 9480), (8840, 9243)]