20117240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3517}}^1$

素因数の和:3552

約数の個数: 64

約数和(自身を含む): 53192160

約数和(自身を除く): 33074920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3517, 5720, 7034, 14068, 17585, 28136, 35170, 38687, 45721, 70340, 77374, 91442, 140680, 154748, 182884, 193435, 228605, 309496, 365768, 386870, 457210, 502931, 773740, 914420, 1005862, 1547480, 1828840, 2011724, 2514655, 4023448, 5029310, 10058620, 20117240]

約数ペア:

[(1, 20117240), (2, 10058620), (4, 5029310), (5, 4023448), (8, 2514655), (10, 2011724), (11, 1828840), (13, 1547480), (20, 1005862), (22, 914420), (26, 773740), (40, 502931), (44, 457210), (52, 386870), (55, 365768), (65, 309496), (88, 228605), (104, 193435), (110, 182884), (130, 154748), (143, 140680), (220, 91442), (260, 77374), (286, 70340), (440, 45721), (520, 38687), (572, 35170), (715, 28136), (1144, 17585), (1430, 14068), (2860, 7034), (3517, 5720)]