4062500

素因数分解:

$2^2\times 5^7\times {\mathrm{13}}^1$

素因数の和:52

約数の個数: 48

約数和(自身を含む): 9570288

約数和(自身を除く): 5507788

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1300, 1625, 2500, 3125, 3250, 6250, 6500, 8125, 12500, 15625, 16250, 31250, 32500, 40625, 62500, 78125, 81250, 156250, 162500, 203125, 312500, 406250, 812500, 1015625, 2031250, 4062500]

約数ペア:

[(1, 4062500), (2, 2031250), (4, 1015625), (5, 812500), (10, 406250), (13, 312500), (20, 203125), (25, 162500), (26, 156250), (50, 81250), (52, 78125), (65, 62500), (100, 40625), (125, 32500), (130, 31250), (250, 16250), (260, 15625), (325, 12500), (500, 8125), (625, 6500), (650, 6250), (1250, 3250), (1300, 3125), (1625, 2500)]