178189240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 447897600

約数和(自身を除く): 269708360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 79, 85, 107, 124, 136, 155, 158, 170, 214, 248, 310, 316, 340, 395, 428, 527, 535, 620, 632, 680, 790, 856, 1054, 1070, 1240, 1343, 1580, 1819, 2108, 2140, 2449, 2635, 2686, 3160, 3317, 3638, 4216, 4280, 4898, 5270, 5372, 6634, 6715, 7276, 8453, 9095, 9796, 10540, 10744, 12245, 13268, 13430, 14552, 16585, 16906, 18190, 19592, 21080, 24490, 26536, 26860, 33170, 33812, 36380, 41633, 42265, 48980, 53720, 56389, 66340, 67624, 72760, 83266, 84530, 97960, 112778, 132680, 143701, 166532, 169060, 208165, 225556, 262043, 281945, 287402, 333064, 338120, 416330, 451112, 524086, 563890, 574804, 718505, 832660, 1048172, 1127780, 1149608, 1310215, 1437010, 1665320, 2096344, 2255560, 2620430, 2874020, 4454731, 5240860, 5748040, 8909462, 10481720, 17818924, 22273655, 35637848, 44547310, 89094620, 178189240]

約数ペア:

[(1, 178189240), (2, 89094620), (4, 44547310), (5, 35637848), (8, 22273655), (10, 17818924), (17, 10481720), (20, 8909462), (31, 5748040), (34, 5240860), (40, 4454731), (62, 2874020), (68, 2620430), (79, 2255560), (85, 2096344), (107, 1665320), (124, 1437010), (136, 1310215), (155, 1149608), (158, 1127780), (170, 1048172), (214, 832660), (248, 718505), (310, 574804), (316, 563890), (340, 524086), (395, 451112), (428, 416330), (527, 338120), (535, 333064), (620, 287402), (632, 281945), (680, 262043), (790, 225556), (856, 208165), (1054, 169060), (1070, 166532), (1240, 143701), (1343, 132680), (1580, 112778), (1819, 97960), (2108, 84530), (2140, 83266), (2449, 72760), (2635, 67624), (2686, 66340), (3160, 56389), (3317, 53720), (3638, 48980), (4216, 42265), (4280, 41633), (4898, 36380), (5270, 33812), (5372, 33170), (6634, 26860), (6715, 26536), (7276, 24490), (8453, 21080), (9095, 19592), (9796, 18190), (10540, 16906), (10744, 16585), (12245, 14552), (13268, 13430)]