208549900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{160423}}^1$

素因数の和:160450

約数の個数: 36

約数和(自身を含む): 487368112

約数和(自身を除く): 278818212

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 160423, 320846, 641692, 802115, 1604230, 2085499, 3208460, 4010575, 4170998, 8021150, 8341996, 10427495, 16042300, 20854990, 41709980, 52137475, 104274950, 208549900]

約数ペア:

[(1, 208549900), (2, 104274950), (4, 52137475), (5, 41709980), (10, 20854990), (13, 16042300), (20, 10427495), (25, 8341996), (26, 8021150), (50, 4170998), (52, 4010575), (65, 3208460), (100, 2085499), (130, 1604230), (260, 802115), (325, 641692), (650, 320846), (1300, 160423)]