201639980

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{35879}}^1$

素因数の和:36169

約数の個数: 24

約数和(自身を含む): 424962720

約数和(自身を除く): 223322740

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 35879, 71758, 143516, 179395, 358790, 717580, 10081999, 20163998, 40327996, 50409995, 100819990, 201639980]

約数ペア:

[(1, 201639980), (2, 100819990), (4, 50409995), (5, 40327996), (10, 20163998), (20, 10081999), (281, 717580), (562, 358790), (1124, 179395), (1405, 143516), (2810, 71758), (5620, 35879)]