256880453840

素因数分解:

$2^4\times 5^1\times {\mathrm{101701}}^1\times {\mathrm{31573}}^1$

素因数の和:133287

約数の個数: 40

約数和(自身を含む): 597271844328

約数和(自身を除く): 340391390488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31573, 63146, 101701, 126292, 157865, 203402, 252584, 315730, 406804, 505168, 508505, 631460, 813608, 1017010, 1262920, 1627216, 2034020, 2525840, 4068040, 8136080, 3211005673, 6422011346, 12844022692, 16055028365, 25688045384, 32110056730, 51376090768, 64220113460, 128440226920, 256880453840]

約数ペア:

[(1, 256880453840), (2, 128440226920), (4, 64220113460), (5, 51376090768), (8, 32110056730), (10, 25688045384), (16, 16055028365), (20, 12844022692), (40, 6422011346), (80, 3211005673), (31573, 8136080), (63146, 4068040), (101701, 2525840), (126292, 2034020), (157865, 1627216), (203402, 1262920), (252584, 1017010), (315730, 813608), (406804, 631460), (505168, 508505)]