20016256

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 44896320

約数和(自身を除く): 24880064

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 299, 368, 416, 523, 598, 736, 832, 1046, 1196, 1472, 1664, 2092, 2392, 2944, 4184, 4784, 6799, 8368, 9568, 12029, 13598, 16736, 19136, 24058, 27196, 33472, 38272, 48116, 54392, 66944, 96232, 108784, 156377, 192464, 217568, 312754, 384928, 435136, 625508, 769856, 870272, 1251016, 1539712, 2502032, 5004064, 10008128, 20016256]

約数ペア:

[(1, 20016256), (2, 10008128), (4, 5004064), (8, 2502032), (13, 1539712), (16, 1251016), (23, 870272), (26, 769856), (32, 625508), (46, 435136), (52, 384928), (64, 312754), (92, 217568), (104, 192464), (128, 156377), (184, 108784), (208, 96232), (299, 66944), (368, 54392), (416, 48116), (523, 38272), (598, 33472), (736, 27196), (832, 24058), (1046, 19136), (1196, 16736), (1472, 13598), (1664, 12029), (2092, 9568), (2392, 8368), (2944, 6799), (4184, 4784)]