778801840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4423}}^1$

素因数の和:4538

約数の個数: 80

約数和(自身を含む): 1895878656

約数和(自身を除く): 1117076816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 1136, 1240, 1420, 2201, 2480, 2840, 4402, 4423, 5680, 8804, 8846, 11005, 17608, 17692, 22010, 22115, 35216, 35384, 44020, 44230, 70768, 88040, 88460, 137113, 176080, 176920, 274226, 314033, 353840, 548452, 628066, 685565, 1096904, 1256132, 1371130, 1570165, 2193808, 2512264, 2742260, 3140330, 5024528, 5484520, 6280660, 9735023, 10969040, 12561320, 19470046, 25122640, 38940092, 48675115, 77880184, 97350230, 155760368, 194700460, 389400920, 778801840]

約数ペア:

[(1, 778801840), (2, 389400920), (4, 194700460), (5, 155760368), (8, 97350230), (10, 77880184), (16, 48675115), (20, 38940092), (31, 25122640), (40, 19470046), (62, 12561320), (71, 10969040), (80, 9735023), (124, 6280660), (142, 5484520), (155, 5024528), (248, 3140330), (284, 2742260), (310, 2512264), (355, 2193808), (496, 1570165), (568, 1371130), (620, 1256132), (710, 1096904), (1136, 685565), (1240, 628066), (1420, 548452), (2201, 353840), (2480, 314033), (2840, 274226), (4402, 176920), (4423, 176080), (5680, 137113), (8804, 88460), (8846, 88040), (11005, 70768), (17608, 44230), (17692, 44020), (22010, 35384), (22115, 35216)]