15955840

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 38666160

約数和(自身を除く): 22710320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 233, 320, 428, 466, 535, 640, 856, 932, 1070, 1165, 1712, 1864, 2140, 2330, 3424, 3728, 4280, 4660, 6848, 7456, 8560, 9320, 13696, 14912, 17120, 18640, 24931, 29824, 34240, 37280, 49862, 68480, 74560, 99724, 124655, 149120, 199448, 249310, 398896, 498620, 797792, 997240, 1595584, 1994480, 3191168, 3988960, 7977920, 15955840]

約数ペア:

[(1, 15955840), (2, 7977920), (4, 3988960), (5, 3191168), (8, 1994480), (10, 1595584), (16, 997240), (20, 797792), (32, 498620), (40, 398896), (64, 249310), (80, 199448), (107, 149120), (128, 124655), (160, 99724), (214, 74560), (233, 68480), (320, 49862), (428, 37280), (466, 34240), (535, 29824), (640, 24931), (856, 18640), (932, 17120), (1070, 14912), (1165, 13696), (1712, 9320), (1864, 8560), (2140, 7456), (2330, 6848), (3424, 4660), (3728, 4280)]