15996920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 21604360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 67, 94, 127, 134, 188, 235, 254, 268, 335, 376, 470, 508, 536, 635, 670, 940, 1016, 1270, 1340, 1880, 2540, 2680, 3149, 5080, 5969, 6298, 8509, 11938, 12596, 15745, 17018, 23876, 25192, 29845, 31490, 34036, 42545, 47752, 59690, 62980, 68072, 85090, 119380, 125960, 170180, 238760, 340360, 399923, 799846, 1599692, 1999615, 3199384, 3999230, 7998460, 15996920]

約数ペア:

[(1, 15996920), (2, 7998460), (4, 3999230), (5, 3199384), (8, 1999615), (10, 1599692), (20, 799846), (40, 399923), (47, 340360), (67, 238760), (94, 170180), (127, 125960), (134, 119380), (188, 85090), (235, 68072), (254, 62980), (268, 59690), (335, 47752), (376, 42545), (470, 34036), (508, 31490), (536, 29845), (635, 25192), (670, 23876), (940, 17018), (1016, 15745), (1270, 12596), (1340, 11938), (1880, 8509), (2540, 6298), (2680, 5969), (3149, 5080)]