203911175

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 54

約数和(自身を含む): 292590648

約数和(自身を除く): 88679473

約数列:

[1, 5, 13, 17, 25, 65, 85, 167, 169, 221, 289, 325, 425, 835, 845, 1105, 1445, 2171, 2839, 2873, 3757, 4175, 4225, 5525, 7225, 10855, 14195, 14365, 18785, 28223, 36907, 48263, 48841, 54275, 70975, 71825, 93925, 141115, 184535, 241315, 244205, 479791, 627419, 705575, 922675, 1206575, 1221025, 2398955, 3137095, 8156447, 11994775, 15685475, 40782235, 203911175]

約数ペア:

[(1, 203911175), (5, 40782235), (13, 15685475), (17, 11994775), (25, 8156447), (65, 3137095), (85, 2398955), (167, 1221025), (169, 1206575), (221, 922675), (289, 705575), (325, 627419), (425, 479791), (835, 244205), (845, 241315), (1105, 184535), (1445, 141115), (2171, 93925), (2839, 71825), (2873, 70975), (3757, 54275), (4175, 48841), (4225, 48263), (5525, 36907), (7225, 28223), (10855, 18785), (14195, 14365)]