80448080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 199875600

約数和(自身を除く): 119427520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 272, 298, 340, 397, 596, 680, 745, 794, 1192, 1360, 1490, 1588, 1985, 2384, 2533, 2980, 3176, 3970, 5066, 5960, 6352, 6749, 7940, 10132, 11920, 12665, 13498, 15880, 20264, 25330, 26996, 31760, 33745, 40528, 50660, 53992, 59153, 67490, 101320, 107984, 118306, 134980, 202640, 236612, 269960, 295765, 473224, 539920, 591530, 946448, 1005601, 1183060, 2011202, 2366120, 4022404, 4732240, 5028005, 8044808, 10056010, 16089616, 20112020, 40224040, 80448080]

約数ペア:

[(1, 80448080), (2, 40224040), (4, 20112020), (5, 16089616), (8, 10056010), (10, 8044808), (16, 5028005), (17, 4732240), (20, 4022404), (34, 2366120), (40, 2011202), (68, 1183060), (80, 1005601), (85, 946448), (136, 591530), (149, 539920), (170, 473224), (272, 295765), (298, 269960), (340, 236612), (397, 202640), (596, 134980), (680, 118306), (745, 107984), (794, 101320), (1192, 67490), (1360, 59153), (1490, 53992), (1588, 50660), (1985, 40528), (2384, 33745), (2533, 31760), (2980, 26996), (3176, 25330), (3970, 20264), (5066, 15880), (5960, 13498), (6352, 12665), (6749, 11920), (7940, 10132)]