31870480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 77995008

約数和(自身を除く): 46124528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 181, 248, 284, 310, 355, 362, 496, 568, 620, 710, 724, 905, 1136, 1240, 1420, 1448, 1810, 2201, 2480, 2840, 2896, 3620, 4402, 5611, 5680, 7240, 8804, 11005, 11222, 12851, 14480, 17608, 22010, 22444, 25702, 28055, 35216, 44020, 44888, 51404, 56110, 64255, 88040, 89776, 102808, 112220, 128510, 176080, 205616, 224440, 257020, 398381, 448880, 514040, 796762, 1028080, 1593524, 1991905, 3187048, 3983810, 6374096, 7967620, 15935240, 31870480]

約数ペア:

[(1, 31870480), (2, 15935240), (4, 7967620), (5, 6374096), (8, 3983810), (10, 3187048), (16, 1991905), (20, 1593524), (31, 1028080), (40, 796762), (62, 514040), (71, 448880), (80, 398381), (124, 257020), (142, 224440), (155, 205616), (181, 176080), (248, 128510), (284, 112220), (310, 102808), (355, 89776), (362, 88040), (496, 64255), (568, 56110), (620, 51404), (710, 44888), (724, 44020), (905, 35216), (1136, 28055), (1240, 25702), (1420, 22444), (1448, 22010), (1810, 17608), (2201, 14480), (2480, 12851), (2840, 11222), (2896, 11005), (3620, 8804), (4402, 7240), (5611, 5680)]