48485240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 114635520

約数和(自身を除く): 66150280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 641, 1220, 1240, 1282, 1891, 2440, 2564, 3205, 3782, 5128, 6410, 7564, 9455, 12820, 15128, 18910, 19871, 25640, 37820, 39101, 39742, 75640, 78202, 79484, 99355, 156404, 158968, 195505, 198710, 312808, 391010, 397420, 782020, 794840, 1212131, 1564040, 2424262, 4848524, 6060655, 9697048, 12121310, 24242620, 48485240]

約数ペア:

[(1, 48485240), (2, 24242620), (4, 12121310), (5, 9697048), (8, 6060655), (10, 4848524), (20, 2424262), (31, 1564040), (40, 1212131), (61, 794840), (62, 782020), (122, 397420), (124, 391010), (155, 312808), (244, 198710), (248, 195505), (305, 158968), (310, 156404), (488, 99355), (610, 79484), (620, 78202), (641, 75640), (1220, 39742), (1240, 39101), (1282, 37820), (1891, 25640), (2440, 19871), (2564, 18910), (3205, 15128), (3782, 12820), (5128, 9455), (6410, 7564)]