1221691250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{75181}}^1$

素因数の和:75216

約数の個数: 40

約数和(自身を含む): 2466119964

約数和(自身を除く): 1244428714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 8125, 16250, 75181, 150362, 375905, 751810, 977353, 1879525, 1954706, 3759050, 4886765, 9397625, 9773530, 18795250, 24433825, 46988125, 48867650, 93976250, 122169125, 244338250, 610845625, 1221691250]

約数ペア:

[(1, 1221691250), (2, 610845625), (5, 244338250), (10, 122169125), (13, 93976250), (25, 48867650), (26, 46988125), (50, 24433825), (65, 18795250), (125, 9773530), (130, 9397625), (250, 4886765), (325, 3759050), (625, 1954706), (650, 1879525), (1250, 977353), (1625, 751810), (3250, 375905), (8125, 150362), (16250, 75181)]