31710240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 216

約数和(自身を含む): 116078508

約数和(自身を除く): 84368268

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 61, 72, 76, 80, 90, 95, 96, 114, 120, 122, 144, 152, 160, 171, 180, 183, 190, 228, 240, 244, 285, 288, 304, 305, 342, 360, 361, 366, 380, 456, 480, 488, 549, 570, 608, 610, 684, 720, 722, 732, 760, 855, 912, 915, 976, 1083, 1098, 1140, 1159, 1220, 1368, 1440, 1444, 1464, 1520, 1710, 1805, 1824, 1830, 1952, 2166, 2196, 2280, 2318, 2440, 2736, 2745, 2888, 2928, 3040, 3249, 3420, 3477, 3610, 3660, 4332, 4392, 4560, 4636, 4880, 5415, 5472, 5490, 5776, 5795, 5856, 6498, 6840, 6954, 7220, 7320, 8664, 8784, 9120, 9272, 9760, 10431, 10830, 10980, 11552, 11590, 12996, 13680, 13908, 14440, 14640, 16245, 17328, 17385, 17568, 18544, 20862, 21660, 21960, 22021, 23180, 25992, 27360, 27816, 28880, 29280, 32490, 34656, 34770, 37088, 41724, 43320, 43920, 44042, 46360, 51984, 52155, 55632, 57760, 64980, 66063, 69540, 83448, 86640, 87840, 88084, 92720, 103968, 104310, 110105, 111264, 129960, 132126, 139080, 166896, 173280, 176168, 185440, 198189, 208620, 220210, 259920, 264252, 278160, 330315, 333792, 352336, 396378, 417240, 440420, 519840, 528504, 556320, 660630, 704672, 792756, 834480, 880840, 990945, 1057008, 1321260, 1585512, 1668960, 1761680, 1981890, 2114016, 2642520, 3171024, 3523360, 3963780, 5285040, 6342048, 7927560, 10570080, 15855120, 31710240]

約数ペア:

[(1, 31710240), (2, 15855120), (3, 10570080), (4, 7927560), (5, 6342048), (6, 5285040), (8, 3963780), (9, 3523360), (10, 3171024), (12, 2642520), (15, 2114016), (16, 1981890), (18, 1761680), (19, 1668960), (20, 1585512), (24, 1321260), (30, 1057008), (32, 990945), (36, 880840), (38, 834480), (40, 792756), (45, 704672), (48, 660630), (57, 556320), (60, 528504), (61, 519840), (72, 440420), (76, 417240), (80, 396378), (90, 352336), (95, 333792), (96, 330315), (114, 278160), (120, 264252), (122, 259920), (144, 220210), (152, 208620), (160, 198189), (171, 185440), (180, 176168), (183, 173280), (190, 166896), (228, 139080), (240, 132126), (244, 129960), (285, 111264), (288, 110105), (304, 104310), (305, 103968), (342, 92720), (360, 88084), (361, 87840), (366, 86640), (380, 83448), (456, 69540), (480, 66063), (488, 64980), (549, 57760), (570, 55632), (608, 52155), (610, 51984), (684, 46360), (720, 44042), (722, 43920), (732, 43320), (760, 41724), (855, 37088), (912, 34770), (915, 34656), (976, 32490), (1083, 29280), (1098, 28880), (1140, 27816), (1159, 27360), (1220, 25992), (1368, 23180), (1440, 22021), (1444, 21960), (1464, 21660), (1520, 20862), (1710, 18544), (1805, 17568), (1824, 17385), (1830, 17328), (1952, 16245), (2166, 14640), (2196, 14440), (2280, 13908), (2318, 13680), (2440, 12996), (2736, 11590), (2745, 11552), (2888, 10980), (2928, 10830), (3040, 10431), (3249, 9760), (3420, 9272), (3477, 9120), (3610, 8784), (3660, 8664), (4332, 7320), (4392, 7220), (4560, 6954), (4636, 6840), (4880, 6498), (5415, 5856), (5472, 5795), (5490, 5776)]