20504970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3121}}^1$

素因数の和:3207

約数の個数: 48

約数和(自身を含む): 54060552

約数和(自身を除く): 33555582

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3121, 3285, 6242, 6570, 9363, 15605, 18726, 28089, 31210, 46815, 56178, 93630, 140445, 227833, 280890, 455666, 683499, 1139165, 1366998, 2050497, 2278330, 3417495, 4100994, 6834990, 10252485, 20504970]

約数ペア:

[(1, 20504970), (2, 10252485), (3, 6834990), (5, 4100994), (6, 3417495), (9, 2278330), (10, 2050497), (15, 1366998), (18, 1139165), (30, 683499), (45, 455666), (73, 280890), (90, 227833), (146, 140445), (219, 93630), (365, 56178), (438, 46815), (657, 31210), (730, 28089), (1095, 18726), (1314, 15605), (2190, 9363), (3121, 6570), (3285, 6242)]