539920

素因数分解:

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

素因数の和:427

約数の個数: 40

約数和(自身を含む): 1332504

約数和(自身を除く): 792584

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 397, 680, 794, 1360, 1588, 1985, 3176, 3970, 6352, 6749, 7940, 13498, 15880, 26996, 31760, 33745, 53992, 67490, 107984, 134980, 269960, 539920]

約数ペア:

[(1, 539920), (2, 269960), (4, 134980), (5, 107984), (8, 67490), (10, 53992), (16, 33745), (17, 31760), (20, 26996), (34, 15880), (40, 13498), (68, 7940), (80, 6749), (85, 6352), (136, 3970), (170, 3176), (272, 1985), (340, 1588), (397, 1360), (680, 794)]