164544280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{132697}}^1$

素因数の和:132739

約数の個数: 32

約数和(自身を含む): 382170240

約数和(自身を除く): 217625960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 132697, 265394, 530788, 663485, 1061576, 1326970, 2653940, 4113607, 5307880, 8227214, 16454428, 20568035, 32908856, 41136070, 82272140, 164544280]

約数ペア:

[(1, 164544280), (2, 82272140), (4, 41136070), (5, 32908856), (8, 20568035), (10, 16454428), (20, 8227214), (31, 5307880), (40, 4113607), (62, 2653940), (124, 1326970), (155, 1061576), (248, 663485), (310, 530788), (620, 265394), (1240, 132697)]