81129620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1$

素因数の和:1545

約数の個数: 96

約数和(自身を含む): 210833280

約数和(自身を除く): 129703660

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 247, 260, 286, 380, 418, 494, 572, 715, 836, 988, 1045, 1235, 1430, 1493, 2090, 2470, 2717, 2860, 2986, 4180, 4940, 5434, 5972, 7465, 10868, 13585, 14930, 16423, 19409, 27170, 28367, 29860, 32846, 38818, 54340, 56734, 65692, 77636, 82115, 97045, 113468, 141835, 164230, 194090, 213499, 283670, 312037, 328460, 368771, 388180, 426998, 567340, 624074, 737542, 853996, 1067495, 1248148, 1475084, 1560185, 1843855, 2134990, 3120370, 3687710, 4056481, 4269980, 6240740, 7375420, 8112962, 16225924, 20282405, 40564810, 81129620]

約数ペア:

[(1, 81129620), (2, 40564810), (4, 20282405), (5, 16225924), (10, 8112962), (11, 7375420), (13, 6240740), (19, 4269980), (20, 4056481), (22, 3687710), (26, 3120370), (38, 2134990), (44, 1843855), (52, 1560185), (55, 1475084), (65, 1248148), (76, 1067495), (95, 853996), (110, 737542), (130, 624074), (143, 567340), (190, 426998), (209, 388180), (220, 368771), (247, 328460), (260, 312037), (286, 283670), (380, 213499), (418, 194090), (494, 164230), (572, 141835), (715, 113468), (836, 97045), (988, 82115), (1045, 77636), (1235, 65692), (1430, 56734), (1493, 54340), (2090, 38818), (2470, 32846), (2717, 29860), (2860, 28367), (2986, 27170), (4180, 19409), (4940, 16423), (5434, 14930), (5972, 13585), (7465, 10868)]