15998356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 32481792

約数和(自身を除く): 16483436

約数列:

[1, 2, 4, 11, 22, 31, 37, 44, 62, 74, 124, 148, 317, 341, 407, 634, 682, 814, 1147, 1268, 1364, 1628, 2294, 3487, 4588, 6974, 9827, 11729, 12617, 13948, 19654, 23458, 25234, 39308, 46916, 50468, 108097, 129019, 216194, 258038, 363599, 432388, 516076, 727198, 1454396, 3999589, 7999178, 15998356]

約数ペア:

[(1, 15998356), (2, 7999178), (4, 3999589), (11, 1454396), (22, 727198), (31, 516076), (37, 432388), (44, 363599), (62, 258038), (74, 216194), (124, 129019), (148, 108097), (317, 50468), (341, 46916), (407, 39308), (634, 25234), (682, 23458), (814, 19654), (1147, 13948), (1268, 12617), (1364, 11729), (1628, 9827), (2294, 6974), (3487, 4588)]