20095240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 29800760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 419, 436, 440, 545, 838, 872, 1090, 1199, 1676, 2095, 2180, 2398, 3352, 4190, 4360, 4609, 4796, 5995, 8380, 9218, 9592, 11990, 16760, 18436, 23045, 23980, 36872, 45671, 46090, 47960, 91342, 92180, 182684, 184360, 228355, 365368, 456710, 502381, 913420, 1004762, 1826840, 2009524, 2511905, 4019048, 5023810, 10047620, 20095240]

約数ペア:

[(1, 20095240), (2, 10047620), (4, 5023810), (5, 4019048), (8, 2511905), (10, 2009524), (11, 1826840), (20, 1004762), (22, 913420), (40, 502381), (44, 456710), (55, 365368), (88, 228355), (109, 184360), (110, 182684), (218, 92180), (220, 91342), (419, 47960), (436, 46090), (440, 45671), (545, 36872), (838, 23980), (872, 23045), (1090, 18436), (1199, 16760), (1676, 11990), (2095, 9592), (2180, 9218), (2398, 8380), (3352, 5995), (4190, 4796), (4360, 4609)]