20151704

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{569}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 40014000

約数和(自身を除く): 19862296

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 233, 466, 569, 932, 1138, 1864, 2276, 4427, 4552, 8854, 10811, 17708, 21622, 35416, 43244, 86488, 132577, 265154, 530308, 1060616, 2518963, 5037926, 10075852, 20151704]

約数ペア:

[(1, 20151704), (2, 10075852), (4, 5037926), (8, 2518963), (19, 1060616), (38, 530308), (76, 265154), (152, 132577), (233, 86488), (466, 43244), (569, 35416), (932, 21622), (1138, 17708), (1864, 10811), (2276, 8854), (4427, 4552)]