20412040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2017}}^1$

素因数の和:2062

約数の個数: 64

約数和(自身を含む): 52306560

約数和(自身を除く): 31894520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2017, 2024, 2530, 4034, 5060, 8068, 10085, 10120, 16136, 20170, 22187, 40340, 44374, 46391, 80680, 88748, 92782, 110935, 177496, 185564, 221870, 231955, 371128, 443740, 463910, 510301, 887480, 927820, 1020602, 1855640, 2041204, 2551505, 4082408, 5103010, 10206020, 20412040]

約数ペア:

[(1, 20412040), (2, 10206020), (4, 5103010), (5, 4082408), (8, 2551505), (10, 2041204), (11, 1855640), (20, 1020602), (22, 927820), (23, 887480), (40, 510301), (44, 463910), (46, 443740), (55, 371128), (88, 231955), (92, 221870), (110, 185564), (115, 177496), (184, 110935), (220, 92782), (230, 88748), (253, 80680), (440, 46391), (460, 44374), (506, 40340), (920, 22187), (1012, 20170), (1265, 16136), (2017, 10120), (2024, 10085), (2530, 8068), (4034, 5060)]