28668560

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4909}}^1$

素因数の和:4995

約数の個数: 40

約数和(自身を含む): 67581240

約数和(自身を除く): 38912680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 4909, 5840, 9818, 19636, 24545, 39272, 49090, 78544, 98180, 196360, 358357, 392720, 716714, 1433428, 1791785, 2866856, 3583570, 5733712, 7167140, 14334280, 28668560]

約数ペア:

[(1, 28668560), (2, 14334280), (4, 7167140), (5, 5733712), (8, 3583570), (10, 2866856), (16, 1791785), (20, 1433428), (40, 716714), (73, 392720), (80, 358357), (146, 196360), (292, 98180), (365, 78544), (584, 49090), (730, 39272), (1168, 24545), (1460, 19636), (2920, 9818), (4909, 5840)]