178431520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:338

約数の個数: 96

約数和(自身を含む): 434367360

約数和(自身を除く): 255935840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 113, 139, 142, 160, 226, 278, 284, 355, 452, 556, 565, 568, 695, 710, 904, 1112, 1130, 1136, 1390, 1420, 1808, 2224, 2260, 2272, 2780, 2840, 3616, 4448, 4520, 5560, 5680, 8023, 9040, 9869, 11120, 11360, 15707, 16046, 18080, 19738, 22240, 31414, 32092, 39476, 40115, 49345, 62828, 64184, 78535, 78952, 80230, 98690, 125656, 128368, 157070, 157904, 160460, 197380, 251312, 256736, 314140, 315808, 320920, 394760, 502624, 628280, 641840, 789520, 1115197, 1256560, 1283680, 1579040, 2230394, 2513120, 4460788, 5575985, 8921576, 11151970, 17843152, 22303940, 35686304, 44607880, 89215760, 178431520]

約数ペア:

[(1, 178431520), (2, 89215760), (4, 44607880), (5, 35686304), (8, 22303940), (10, 17843152), (16, 11151970), (20, 8921576), (32, 5575985), (40, 4460788), (71, 2513120), (80, 2230394), (113, 1579040), (139, 1283680), (142, 1256560), (160, 1115197), (226, 789520), (278, 641840), (284, 628280), (355, 502624), (452, 394760), (556, 320920), (565, 315808), (568, 314140), (695, 256736), (710, 251312), (904, 197380), (1112, 160460), (1130, 157904), (1136, 157070), (1390, 128368), (1420, 125656), (1808, 98690), (2224, 80230), (2260, 78952), (2272, 78535), (2780, 64184), (2840, 62828), (3616, 49345), (4448, 40115), (4520, 39476), (5560, 32092), (5680, 31414), (8023, 22240), (9040, 19738), (9869, 18080), (11120, 16046), (11360, 15707)]