157280980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{253679}}^1$

素因数の和:253719

約数の個数: 24

約数和(自身を含む): 340945920

約数和(自身を除く): 183664940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 253679, 507358, 1014716, 1268395, 2536790, 5073580, 7864049, 15728098, 31456196, 39320245, 78640490, 157280980]

約数ペア:

[(1, 157280980), (2, 78640490), (4, 39320245), (5, 31456196), (10, 15728098), (20, 7864049), (31, 5073580), (62, 2536790), (124, 1268395), (155, 1014716), (310, 507358), (620, 253679)]