25019920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18397}}^1$

素因数の和:18427

約数の個数: 40

約数和(自身を含む): 61596504

約数和(自身を除く): 36576584

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18397, 36794, 73588, 91985, 147176, 183970, 294352, 312749, 367940, 625498, 735880, 1250996, 1471760, 1563745, 2501992, 3127490, 5003984, 6254980, 12509960, 25019920]

約数ペア:

[(1, 25019920), (2, 12509960), (4, 6254980), (5, 5003984), (8, 3127490), (10, 2501992), (16, 1563745), (17, 1471760), (20, 1250996), (34, 735880), (40, 625498), (68, 367940), (80, 312749), (85, 294352), (136, 183970), (170, 147176), (272, 91985), (340, 73588), (680, 36794), (1360, 18397)]