131579240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3203}}^1$

素因数の和:3306

約数の個数: 64

約数和(自身を含む): 322963200

約数和(自身を除く): 191383960

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, 3203, 4108, 5135, 6406, 8216, 10270, 12812, 16015, 20540, 25624, 32030, 41080, 41639, 64060, 83278, 128120, 166556, 208195, 253037, 333112, 416390, 506074, 832780, 1012148, 1265185, 1665560, 2024296, 2530370, 3289481, 5060740, 6578962, 10121480, 13157924, 16447405, 26315848, 32894810, 65789620, 131579240]

約数ペア:

[(1, 131579240), (2, 65789620), (4, 32894810), (5, 26315848), (8, 16447405), (10, 13157924), (13, 10121480), (20, 6578962), (26, 5060740), (40, 3289481), (52, 2530370), (65, 2024296), (79, 1665560), (104, 1265185), (130, 1012148), (158, 832780), (260, 506074), (316, 416390), (395, 333112), (520, 253037), (632, 208195), (790, 166556), (1027, 128120), (1580, 83278), (2054, 64060), (3160, 41639), (3203, 41080), (4108, 32030), (5135, 25624), (6406, 20540), (8216, 16015), (10270, 12812)]