18681800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3221}}^1$

素因数の和:3266

約数の個数: 48

約数和(自身を含む): 44946900

約数和(自身を除く): 26265100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3221, 5800, 6442, 12884, 16105, 25768, 32210, 64420, 80525, 93409, 128840, 161050, 186818, 322100, 373636, 467045, 644200, 747272, 934090, 1868180, 2335225, 3736360, 4670450, 9340900, 18681800]

約数ペア:

[(1, 18681800), (2, 9340900), (4, 4670450), (5, 3736360), (8, 2335225), (10, 1868180), (20, 934090), (25, 747272), (29, 644200), (40, 467045), (50, 373636), (58, 322100), (100, 186818), (116, 161050), (145, 128840), (200, 93409), (232, 80525), (290, 64420), (580, 32210), (725, 25768), (1160, 16105), (1450, 12884), (2900, 6442), (3221, 5800)]