20870970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2707}}^1$

素因数の和:2974

約数の個数: 32

約数和(自身を含む): 50303808

約数和(自身を除く): 29432838

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 257, 514, 771, 1285, 1542, 2570, 2707, 3855, 5414, 7710, 8121, 13535, 16242, 27070, 40605, 81210, 695699, 1391398, 2087097, 3478495, 4174194, 6956990, 10435485, 20870970]

約数ペア:

[(1, 20870970), (2, 10435485), (3, 6956990), (5, 4174194), (6, 3478495), (10, 2087097), (15, 1391398), (30, 695699), (257, 81210), (514, 40605), (771, 27070), (1285, 16242), (1542, 13535), (2570, 8121), (2707, 7710), (3855, 5414)]