81863800

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7723}}^1$

素因数の和:7792

約数の個数: 48

約数和(自身を含む): 193949640

約数和(自身を除く): 112085840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 2120, 2650, 5300, 7723, 10600, 15446, 30892, 38615, 61784, 77230, 154460, 193075, 308920, 386150, 409319, 772300, 818638, 1544600, 1637276, 2046595, 3274552, 4093190, 8186380, 10232975, 16372760, 20465950, 40931900, 81863800]

約数ペア:

[(1, 81863800), (2, 40931900), (4, 20465950), (5, 16372760), (8, 10232975), (10, 8186380), (20, 4093190), (25, 3274552), (40, 2046595), (50, 1637276), (53, 1544600), (100, 818638), (106, 772300), (200, 409319), (212, 386150), (265, 308920), (424, 193075), (530, 154460), (1060, 77230), (1325, 61784), (2120, 38615), (2650, 30892), (5300, 15446), (7723, 10600)]