40639760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2341}}^1$

素因数の和:2392

約数の個数: 80

約数和(自身を含む): 111516672

約数和(自身を除く): 70876912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2341, 2480, 3472, 4340, 4682, 8680, 9364, 11705, 16387, 17360, 18728, 23410, 32774, 37456, 46820, 65548, 72571, 81935, 93640, 131096, 145142, 163870, 187280, 262192, 290284, 327740, 362855, 507997, 580568, 655480, 725710, 1015994, 1161136, 1310960, 1451420, 2031988, 2539985, 2902840, 4063976, 5079970, 5805680, 8127952, 10159940, 20319880, 40639760]

約数ペア:

[(1, 40639760), (2, 20319880), (4, 10159940), (5, 8127952), (7, 5805680), (8, 5079970), (10, 4063976), (14, 2902840), (16, 2539985), (20, 2031988), (28, 1451420), (31, 1310960), (35, 1161136), (40, 1015994), (56, 725710), (62, 655480), (70, 580568), (80, 507997), (112, 362855), (124, 327740), (140, 290284), (155, 262192), (217, 187280), (248, 163870), (280, 145142), (310, 131096), (434, 93640), (496, 81935), (560, 72571), (620, 65548), (868, 46820), (1085, 37456), (1240, 32774), (1736, 23410), (2170, 18728), (2341, 17360), (2480, 16387), (3472, 11705), (4340, 9364), (4682, 8680)]