20277620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1592

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26969356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1511, 2684, 3022, 3355, 6044, 6710, 7555, 13420, 15110, 16621, 30220, 33242, 66484, 83105, 92171, 166210, 184342, 332420, 368684, 460855, 921710, 1013881, 1843420, 2027762, 4055524, 5069405, 10138810, 20277620]

約数ペア:

[(1, 20277620), (2, 10138810), (4, 5069405), (5, 4055524), (10, 2027762), (11, 1843420), (20, 1013881), (22, 921710), (44, 460855), (55, 368684), (61, 332420), (110, 184342), (122, 166210), (220, 92171), (244, 83105), (305, 66484), (610, 33242), (671, 30220), (1220, 16621), (1342, 15110), (1511, 13420), (2684, 7555), (3022, 6710), (3355, 6044)]