39920080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 99435600

約数和(自身を除く): 59515520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 197, 272, 298, 340, 394, 596, 680, 745, 788, 985, 1192, 1360, 1490, 1576, 1970, 2384, 2533, 2980, 3152, 3349, 3940, 5066, 5960, 6698, 7880, 10132, 11920, 12665, 13396, 15760, 16745, 20264, 25330, 26792, 29353, 33490, 40528, 50660, 53584, 58706, 66980, 101320, 117412, 133960, 146765, 202640, 234824, 267920, 293530, 469648, 499001, 587060, 998002, 1174120, 1996004, 2348240, 2495005, 3992008, 4990010, 7984016, 9980020, 19960040, 39920080]

約数ペア:

[(1, 39920080), (2, 19960040), (4, 9980020), (5, 7984016), (8, 4990010), (10, 3992008), (16, 2495005), (17, 2348240), (20, 1996004), (34, 1174120), (40, 998002), (68, 587060), (80, 499001), (85, 469648), (136, 293530), (149, 267920), (170, 234824), (197, 202640), (272, 146765), (298, 133960), (340, 117412), (394, 101320), (596, 66980), (680, 58706), (745, 53584), (788, 50660), (985, 40528), (1192, 33490), (1360, 29353), (1490, 26792), (1576, 25330), (1970, 20264), (2384, 16745), (2533, 15760), (2980, 13396), (3152, 12665), (3349, 11920), (3940, 10132), (5066, 7880), (5960, 6698)]