20475832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23069768

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 59, 71, 94, 104, 118, 142, 188, 236, 284, 376, 472, 568, 611, 767, 923, 1222, 1534, 1846, 2444, 2773, 3068, 3337, 3692, 4189, 4888, 5546, 6136, 6674, 7384, 8378, 11092, 13348, 16756, 22184, 26696, 33512, 36049, 43381, 54457, 72098, 86762, 108914, 144196, 173524, 196883, 217828, 288392, 347048, 393766, 435656, 787532, 1575064, 2559479, 5118958, 10237916, 20475832]

約数ペア:

[(1, 20475832), (2, 10237916), (4, 5118958), (8, 2559479), (13, 1575064), (26, 787532), (47, 435656), (52, 393766), (59, 347048), (71, 288392), (94, 217828), (104, 196883), (118, 173524), (142, 144196), (188, 108914), (236, 86762), (284, 72098), (376, 54457), (472, 43381), (568, 36049), (611, 33512), (767, 26696), (923, 22184), (1222, 16756), (1534, 13348), (1846, 11092), (2444, 8378), (2773, 7384), (3068, 6674), (3337, 6136), (3692, 5546), (4189, 4888)]