201440080

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{5981}}^1$

素因数の和:6415

約数の個数: 40

約数和(自身を含む): 469539144

約数和(自身を除く): 268099064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 5981, 6736, 8420, 11962, 16840, 23924, 29905, 33680, 47848, 59810, 95696, 119620, 239240, 478480, 2518001, 5036002, 10072004, 12590005, 20144008, 25180010, 40288016, 50360020, 100720040, 201440080]

約数ペア:

[(1, 201440080), (2, 100720040), (4, 50360020), (5, 40288016), (8, 25180010), (10, 20144008), (16, 12590005), (20, 10072004), (40, 5036002), (80, 2518001), (421, 478480), (842, 239240), (1684, 119620), (2105, 95696), (3368, 59810), (4210, 47848), (5981, 33680), (6736, 29905), (8420, 23924), (11962, 16840)]