638862830

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{2731}}^1$

素因数の和:3044

約数の個数: 32

約数和(自身を含む): 1165471200

約数和(自身を除く): 526608370

約数列:

[1, 2, 5, 10, 149, 157, 298, 314, 745, 785, 1490, 1570, 2731, 5462, 13655, 23393, 27310, 46786, 116965, 233930, 406919, 428767, 813838, 857534, 2034595, 2143835, 4069190, 4287670, 63886283, 127772566, 319431415, 638862830]

約数ペア:

[(1, 638862830), (2, 319431415), (5, 127772566), (10, 63886283), (149, 4287670), (157, 4069190), (298, 2143835), (314, 2034595), (745, 857534), (785, 813838), (1490, 428767), (1570, 406919), (2731, 233930), (5462, 116965), (13655, 46786), (23393, 27310)]