71538440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 166486320

約数和(自身を除く): 94947880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 241, 328, 362, 410, 482, 724, 820, 905, 964, 1205, 1448, 1640, 1810, 1928, 2410, 3620, 4820, 7240, 7421, 9640, 9881, 14842, 19762, 29684, 37105, 39524, 43621, 49405, 59368, 74210, 79048, 87242, 98810, 148420, 174484, 197620, 218105, 296840, 348968, 395240, 436210, 872420, 1744840, 1788461, 3576922, 7153844, 8942305, 14307688, 17884610, 35769220, 71538440]

約数ペア:

[(1, 71538440), (2, 35769220), (4, 17884610), (5, 14307688), (8, 8942305), (10, 7153844), (20, 3576922), (40, 1788461), (41, 1744840), (82, 872420), (164, 436210), (181, 395240), (205, 348968), (241, 296840), (328, 218105), (362, 197620), (410, 174484), (482, 148420), (724, 98810), (820, 87242), (905, 79048), (964, 74210), (1205, 59368), (1448, 49405), (1640, 43621), (1810, 39524), (1928, 37105), (2410, 29684), (3620, 19762), (4820, 14842), (7240, 9881), (7421, 9640)]