81401840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2699}}^1$

素因数の和:2754

約数の個数: 80

約数和(自身を含む): 210924000

約数和(自身を除く): 129522160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2320, 2699, 3016, 3770, 5398, 6032, 7540, 10796, 13495, 15080, 21592, 26990, 30160, 35087, 43184, 53980, 70174, 78271, 107960, 140348, 156542, 175435, 215920, 280696, 313084, 350870, 391355, 561392, 626168, 701740, 782710, 1017523, 1252336, 1403480, 1565420, 2035046, 2806960, 3130840, 4070092, 5087615, 6261680, 8140184, 10175230, 16280368, 20350460, 40700920, 81401840]

約数ペア:

[(1, 81401840), (2, 40700920), (4, 20350460), (5, 16280368), (8, 10175230), (10, 8140184), (13, 6261680), (16, 5087615), (20, 4070092), (26, 3130840), (29, 2806960), (40, 2035046), (52, 1565420), (58, 1403480), (65, 1252336), (80, 1017523), (104, 782710), (116, 701740), (130, 626168), (145, 561392), (208, 391355), (232, 350870), (260, 313084), (290, 280696), (377, 215920), (464, 175435), (520, 156542), (580, 140348), (754, 107960), (1040, 78271), (1160, 70174), (1508, 53980), (1885, 43184), (2320, 35087), (2699, 30160), (3016, 26990), (3770, 21592), (5398, 15080), (6032, 13495), (7540, 10796)]