188808880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2654

約数の個数: 80

約数和(自身を含む): 479594304

約数和(自身を除く): 290785424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 923, 1040, 1136, 1420, 1846, 2557, 2840, 3692, 4615, 5114, 5680, 7384, 9230, 10228, 12785, 14768, 18460, 20456, 25570, 33241, 36920, 40912, 51140, 66482, 73840, 102280, 132964, 166205, 181547, 204560, 265928, 332410, 363094, 531856, 664820, 726188, 907735, 1329640, 1452376, 1815470, 2360111, 2659280, 2904752, 3630940, 4720222, 7261880, 9440444, 11800555, 14523760, 18880888, 23601110, 37761776, 47202220, 94404440, 188808880]

約数ペア:

[(1, 188808880), (2, 94404440), (4, 47202220), (5, 37761776), (8, 23601110), (10, 18880888), (13, 14523760), (16, 11800555), (20, 9440444), (26, 7261880), (40, 4720222), (52, 3630940), (65, 2904752), (71, 2659280), (80, 2360111), (104, 1815470), (130, 1452376), (142, 1329640), (208, 907735), (260, 726188), (284, 664820), (355, 531856), (520, 363094), (568, 332410), (710, 265928), (923, 204560), (1040, 181547), (1136, 166205), (1420, 132964), (1846, 102280), (2557, 73840), (2840, 66482), (3692, 51140), (4615, 40912), (5114, 36920), (5680, 33241), (7384, 25570), (9230, 20456), (10228, 18460), (12785, 14768)]