81418600

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7681}}^1$

素因数の和:7750

約数の個数: 48

約数和(自身を含む): 192895020

約数和(自身を除く): 111476420

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, 7681, 10600, 15362, 30724, 38405, 61448, 76810, 153620, 192025, 307240, 384050, 407093, 768100, 814186, 1536200, 1628372, 2035465, 3256744, 4070930, 8141860, 10177325, 16283720, 20354650, 40709300, 81418600]

約数ペア:

[(1, 81418600), (2, 40709300), (4, 20354650), (5, 16283720), (8, 10177325), (10, 8141860), (20, 4070930), (25, 3256744), (40, 2035465), (50, 1628372), (53, 1536200), (100, 814186), (106, 768100), (200, 407093), (212, 384050), (265, 307240), (424, 192025), (530, 153620), (1060, 76810), (1325, 61448), (2120, 38405), (2650, 30724), (5300, 15362), (7681, 10600)]