81628740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{797}}^1$

素因数の和:1381

約数の個数: 72

約数和(自身を含む): 248353560

約数和(自身を除く): 166724820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 569, 797, 1138, 1594, 1707, 2276, 2391, 2845, 3188, 3414, 3985, 4782, 5121, 5690, 6828, 7173, 7970, 8535, 9564, 10242, 11380, 11955, 14346, 15940, 17070, 20484, 23910, 25605, 28692, 34140, 35865, 47820, 51210, 71730, 102420, 143460, 453493, 906986, 1360479, 1813972, 2267465, 2720958, 4081437, 4534930, 5441916, 6802395, 8162874, 9069860, 13604790, 16325748, 20407185, 27209580, 40814370, 81628740]

約数ペア:

[(1, 81628740), (2, 40814370), (3, 27209580), (4, 20407185), (5, 16325748), (6, 13604790), (9, 9069860), (10, 8162874), (12, 6802395), (15, 5441916), (18, 4534930), (20, 4081437), (30, 2720958), (36, 2267465), (45, 1813972), (60, 1360479), (90, 906986), (180, 453493), (569, 143460), (797, 102420), (1138, 71730), (1594, 51210), (1707, 47820), (2276, 35865), (2391, 34140), (2845, 28692), (3188, 25605), (3414, 23910), (3985, 20484), (4782, 17070), (5121, 15940), (5690, 14346), (6828, 11955), (7173, 11380), (7970, 10242), (8535, 9564)]