20003750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1266

約数の個数: 40

約数和(自身を含む): 40412064

約数和(自身を除く): 20408314

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1231, 1250, 1625, 2462, 3250, 6155, 8125, 12310, 16003, 16250, 30775, 32006, 61550, 80015, 153875, 160030, 307750, 400075, 769375, 800150, 1538750, 2000375, 4000750, 10001875, 20003750]

約数ペア:

[(1, 20003750), (2, 10001875), (5, 4000750), (10, 2000375), (13, 1538750), (25, 800150), (26, 769375), (50, 400075), (65, 307750), (125, 160030), (130, 153875), (250, 80015), (325, 61550), (625, 32006), (650, 30775), (1231, 16250), (1250, 16003), (1625, 12310), (2462, 8125), (3250, 6155)]