331386250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{20393}}^1$

素因数の和:20428

約数の個数: 40

約数和(自身を含む): 668963988

約数和(自身を除く): 337577738

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 8125, 16250, 20393, 40786, 101965, 203930, 265109, 509825, 530218, 1019650, 1325545, 2549125, 2651090, 5098250, 6627725, 12745625, 13255450, 25491250, 33138625, 66277250, 165693125, 331386250]

約数ペア:

[(1, 331386250), (2, 165693125), (5, 66277250), (10, 33138625), (13, 25491250), (25, 13255450), (26, 12745625), (50, 6627725), (65, 5098250), (125, 2651090), (130, 2549125), (250, 1325545), (325, 1019650), (625, 530218), (650, 509825), (1250, 265109), (1625, 203930), (3250, 101965), (8125, 40786), (16250, 20393)]