39990136

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 80787240

約数和(自身を除く): 40797104

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 227, 244, 361, 454, 488, 722, 908, 1159, 1444, 1816, 2318, 2888, 4313, 4636, 8626, 9272, 13847, 17252, 22021, 27694, 34504, 44042, 55388, 81947, 88084, 110776, 163894, 176168, 263093, 327788, 526186, 655576, 1052372, 2104744, 4998767, 9997534, 19995068, 39990136]

約数ペア:

[(1, 39990136), (2, 19995068), (4, 9997534), (8, 4998767), (19, 2104744), (38, 1052372), (61, 655576), (76, 526186), (122, 327788), (152, 263093), (227, 176168), (244, 163894), (361, 110776), (454, 88084), (488, 81947), (722, 55388), (908, 44042), (1159, 34504), (1444, 27694), (1816, 22021), (2318, 17252), (2888, 13847), (4313, 9272), (4636, 8626)]