20040176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 24956944

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 59, 71, 92, 104, 118, 142, 184, 208, 236, 284, 299, 368, 472, 568, 598, 767, 923, 944, 1136, 1196, 1357, 1534, 1633, 1846, 2392, 2714, 3068, 3266, 3692, 4189, 4784, 5428, 6136, 6532, 7384, 8378, 10856, 12272, 13064, 14768, 16756, 17641, 21229, 21712, 26128, 33512, 35282, 42458, 54457, 67024, 70564, 84916, 96347, 108914, 141128, 169832, 192694, 217828, 282256, 339664, 385388, 435656, 770776, 871312, 1252511, 1541552, 2505022, 5010044, 10020088, 20040176]

約数ペア:

[(1, 20040176), (2, 10020088), (4, 5010044), (8, 2505022), (13, 1541552), (16, 1252511), (23, 871312), (26, 770776), (46, 435656), (52, 385388), (59, 339664), (71, 282256), (92, 217828), (104, 192694), (118, 169832), (142, 141128), (184, 108914), (208, 96347), (236, 84916), (284, 70564), (299, 67024), (368, 54457), (472, 42458), (568, 35282), (598, 33512), (767, 26128), (923, 21712), (944, 21229), (1136, 17641), (1196, 16756), (1357, 14768), (1534, 13064), (1633, 12272), (1846, 10856), (2392, 8378), (2714, 7384), (3068, 6532), (3266, 6136), (3692, 5428), (4189, 4784)]