818026040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19913}}^1$

素因数の和:20016

約数の個数: 64

約数和(自身を含む): 2007331200

約数和(自身を除く): 1189305160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 520, 632, 790, 1027, 1580, 2054, 3160, 4108, 5135, 8216, 10270, 19913, 20540, 39826, 41080, 79652, 99565, 159304, 199130, 258869, 398260, 517738, 796520, 1035476, 1294345, 1573127, 2070952, 2588690, 3146254, 5177380, 6292508, 7865635, 10354760, 12585016, 15731270, 20450651, 31462540, 40901302, 62925080, 81802604, 102253255, 163605208, 204506510, 409013020, 818026040]

約数ペア:

[(1, 818026040), (2, 409013020), (4, 204506510), (5, 163605208), (8, 102253255), (10, 81802604), (13, 62925080), (20, 40901302), (26, 31462540), (40, 20450651), (52, 15731270), (65, 12585016), (79, 10354760), (104, 7865635), (130, 6292508), (158, 5177380), (260, 3146254), (316, 2588690), (395, 2070952), (520, 1573127), (632, 1294345), (790, 1035476), (1027, 796520), (1580, 517738), (2054, 398260), (3160, 258869), (4108, 199130), (5135, 159304), (8216, 99565), (10270, 79652), (19913, 41080), (20540, 39826)]