831740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 2154432

約数和(自身を除く): 1322692

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 457, 910, 914, 1820, 1828, 2285, 3199, 4570, 5941, 6398, 9140, 11882, 12796, 15995, 23764, 29705, 31990, 41587, 59410, 63980, 83174, 118820, 166348, 207935, 415870, 831740]

約数ペア:

[(1, 831740), (2, 415870), (4, 207935), (5, 166348), (7, 118820), (10, 83174), (13, 63980), (14, 59410), (20, 41587), (26, 31990), (28, 29705), (35, 23764), (52, 15995), (65, 12796), (70, 11882), (91, 9140), (130, 6398), (140, 5941), (182, 4570), (260, 3199), (364, 2285), (455, 1828), (457, 1820), (910, 914)]