28481960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54773}}^1$

素因数の和:54797

約数の個数: 32

約数和(自身を含む): 69015240

約数和(自身を除く): 40533280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54773, 109546, 219092, 273865, 438184, 547730, 712049, 1095460, 1424098, 2190920, 2848196, 3560245, 5696392, 7120490, 14240980, 28481960]

約数ペア:

[(1, 28481960), (2, 14240980), (4, 7120490), (5, 5696392), (8, 3560245), (10, 2848196), (13, 2190920), (20, 1424098), (26, 1095460), (40, 712049), (52, 547730), (65, 438184), (104, 273865), (130, 219092), (260, 109546), (520, 54773)]