408200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 1028580

約数和(自身を除く): 620380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 157, 200, 260, 314, 325, 520, 628, 650, 785, 1256, 1300, 1570, 2041, 2600, 3140, 3925, 4082, 6280, 7850, 8164, 10205, 15700, 16328, 20410, 31400, 40820, 51025, 81640, 102050, 204100, 408200]

約数ペア:

[(1, 408200), (2, 204100), (4, 102050), (5, 81640), (8, 51025), (10, 40820), (13, 31400), (20, 20410), (25, 16328), (26, 15700), (40, 10205), (50, 8164), (52, 7850), (65, 6280), (100, 4082), (104, 3925), (130, 3140), (157, 2600), (200, 2041), (260, 1570), (314, 1300), (325, 1256), (520, 785), (628, 650)]