71425580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 161467152

約数和(自身を除く): 90041572

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 157, 172, 215, 230, 314, 430, 460, 529, 628, 785, 860, 989, 1058, 1570, 1978, 2116, 2645, 3140, 3611, 3956, 4945, 5290, 6751, 7222, 9890, 10580, 13502, 14444, 18055, 19780, 22747, 27004, 33755, 36110, 45494, 67510, 72220, 83053, 90988, 113735, 135020, 155273, 166106, 227470, 310546, 332212, 415265, 454940, 621092, 776365, 830530, 1552730, 1661060, 3105460, 3571279, 7142558, 14285116, 17856395, 35712790, 71425580]

約数ペア:

[(1, 71425580), (2, 35712790), (4, 17856395), (5, 14285116), (10, 7142558), (20, 3571279), (23, 3105460), (43, 1661060), (46, 1552730), (86, 830530), (92, 776365), (115, 621092), (157, 454940), (172, 415265), (215, 332212), (230, 310546), (314, 227470), (430, 166106), (460, 155273), (529, 135020), (628, 113735), (785, 90988), (860, 83053), (989, 72220), (1058, 67510), (1570, 45494), (1978, 36110), (2116, 33755), (2645, 27004), (3140, 22747), (3611, 19780), (3956, 18055), (4945, 14444), (5290, 13502), (6751, 10580), (7222, 9890)]