171420920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{1229}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 422431200

約数和(自身を除く): 251010280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 317, 440, 634, 1229, 1268, 1585, 2458, 2536, 3170, 3487, 4916, 6145, 6340, 6974, 9832, 12290, 12680, 13519, 13948, 17435, 24580, 27038, 27896, 34870, 49160, 54076, 67595, 69740, 108152, 135190, 139480, 270380, 389593, 540760, 779186, 1558372, 1947965, 3116744, 3895930, 4285523, 7791860, 8571046, 15583720, 17142092, 21427615, 34284184, 42855230, 85710460, 171420920]

約数ペア:

[(1, 171420920), (2, 85710460), (4, 42855230), (5, 34284184), (8, 21427615), (10, 17142092), (11, 15583720), (20, 8571046), (22, 7791860), (40, 4285523), (44, 3895930), (55, 3116744), (88, 1947965), (110, 1558372), (220, 779186), (317, 540760), (440, 389593), (634, 270380), (1229, 139480), (1268, 135190), (1585, 108152), (2458, 69740), (2536, 67595), (3170, 54076), (3487, 49160), (4916, 34870), (6145, 27896), (6340, 27038), (6974, 24580), (9832, 17435), (12290, 13948), (12680, 13519)]