204100

素因数分解:

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

素因数の和:184

約数の個数: 36

約数和(自身を含む): 480004

約数和(自身を除く): 275904

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 157, 260, 314, 325, 628, 650, 785, 1300, 1570, 2041, 3140, 3925, 4082, 7850, 8164, 10205, 15700, 20410, 40820, 51025, 102050, 204100]

約数ペア:

[(1, 204100), (2, 102050), (4, 51025), (5, 40820), (10, 20410), (13, 15700), (20, 10205), (25, 8164), (26, 7850), (50, 4082), (52, 3925), (65, 3140), (100, 2041), (130, 1570), (157, 1300), (260, 785), (314, 650), (325, 628)]