31940920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 78991200

約数和(自身を除く): 47050280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 229, 317, 440, 458, 634, 916, 1145, 1268, 1585, 1832, 2290, 2519, 2536, 3170, 3487, 4580, 5038, 6340, 6974, 9160, 10076, 12595, 12680, 13948, 17435, 20152, 25190, 27896, 34870, 50380, 69740, 72593, 100760, 139480, 145186, 290372, 362965, 580744, 725930, 798523, 1451860, 1597046, 2903720, 3194092, 3992615, 6388184, 7985230, 15970460, 31940920]

約数ペア:

[(1, 31940920), (2, 15970460), (4, 7985230), (5, 6388184), (8, 3992615), (10, 3194092), (11, 2903720), (20, 1597046), (22, 1451860), (40, 798523), (44, 725930), (55, 580744), (88, 362965), (110, 290372), (220, 145186), (229, 139480), (317, 100760), (440, 72593), (458, 69740), (634, 50380), (916, 34870), (1145, 27896), (1268, 25190), (1585, 20152), (1832, 17435), (2290, 13948), (2519, 12680), (2536, 12595), (3170, 10076), (3487, 9160), (4580, 6974), (5038, 6340)]