81456960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 224

約数和(自身を含む): 285731712

約数和(自身を除く): 204274752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 61, 64, 65, 78, 80, 96, 104, 107, 120, 122, 130, 156, 160, 183, 192, 195, 208, 214, 240, 244, 260, 305, 312, 320, 321, 366, 390, 416, 428, 480, 488, 520, 535, 610, 624, 642, 732, 780, 793, 832, 856, 915, 960, 976, 1040, 1070, 1220, 1248, 1284, 1391, 1464, 1560, 1586, 1605, 1712, 1830, 1952, 2080, 2140, 2379, 2440, 2496, 2568, 2782, 2928, 3120, 3172, 3210, 3424, 3660, 3904, 3965, 4160, 4173, 4280, 4758, 4880, 5136, 5564, 5856, 6240, 6344, 6420, 6527, 6848, 6955, 7320, 7930, 8346, 8560, 9516, 9760, 10272, 11128, 11712, 11895, 12480, 12688, 12840, 13054, 13910, 14640, 15860, 16692, 17120, 19032, 19520, 19581, 20544, 20865, 22256, 23790, 25376, 25680, 26108, 27820, 29280, 31720, 32635, 33384, 34240, 38064, 39162, 41730, 44512, 47580, 50752, 51360, 52216, 55640, 58560, 63440, 65270, 66768, 76128, 78324, 83460, 84851, 89024, 95160, 97905, 102720, 104432, 111280, 126880, 130540, 133536, 152256, 156648, 166920, 169702, 190320, 195810, 208864, 222560, 253760, 254553, 261080, 267072, 313296, 333840, 339404, 380640, 391620, 417728, 424255, 445120, 509106, 522160, 626592, 667680, 678808, 761280, 783240, 848510, 1018212, 1044320, 1253184, 1272765, 1335360, 1357616, 1566480, 1697020, 2036424, 2088640, 2545530, 2715232, 3132960, 3394040, 4072848, 5091060, 5430464, 6265920, 6788080, 8145696, 10182120, 13576160, 16291392, 20364240, 27152320, 40728480, 81456960]

約数ペア:

[(1, 81456960), (2, 40728480), (3, 27152320), (4, 20364240), (5, 16291392), (6, 13576160), (8, 10182120), (10, 8145696), (12, 6788080), (13, 6265920), (15, 5430464), (16, 5091060), (20, 4072848), (24, 3394040), (26, 3132960), (30, 2715232), (32, 2545530), (39, 2088640), (40, 2036424), (48, 1697020), (52, 1566480), (60, 1357616), (61, 1335360), (64, 1272765), (65, 1253184), (78, 1044320), (80, 1018212), (96, 848510), (104, 783240), (107, 761280), (120, 678808), (122, 667680), (130, 626592), (156, 522160), (160, 509106), (183, 445120), (192, 424255), (195, 417728), (208, 391620), (214, 380640), (240, 339404), (244, 333840), (260, 313296), (305, 267072), (312, 261080), (320, 254553), (321, 253760), (366, 222560), (390, 208864), (416, 195810), (428, 190320), (480, 169702), (488, 166920), (520, 156648), (535, 152256), (610, 133536), (624, 130540), (642, 126880), (732, 111280), (780, 104432), (793, 102720), (832, 97905), (856, 95160), (915, 89024), (960, 84851), (976, 83460), (1040, 78324), (1070, 76128), (1220, 66768), (1248, 65270), (1284, 63440), (1391, 58560), (1464, 55640), (1560, 52216), (1586, 51360), (1605, 50752), (1712, 47580), (1830, 44512), (1952, 41730), (2080, 39162), (2140, 38064), (2379, 34240), (2440, 33384), (2496, 32635), (2568, 31720), (2782, 29280), (2928, 27820), (3120, 26108), (3172, 25680), (3210, 25376), (3424, 23790), (3660, 22256), (3904, 20865), (3965, 20544), (4160, 19581), (4173, 19520), (4280, 19032), (4758, 17120), (4880, 16692), (5136, 15860), (5564, 14640), (5856, 13910), (6240, 13054), (6344, 12840), (6420, 12688), (6527, 12480), (6848, 11895), (6955, 11712), (7320, 11128), (7930, 10272), (8346, 9760), (8560, 9516)]