8189140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 17902080

約数和(自身を除く): 9712940

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 79, 142, 146, 158, 284, 292, 316, 355, 365, 395, 710, 730, 790, 1420, 1460, 1580, 5183, 5609, 5767, 10366, 11218, 11534, 20732, 22436, 23068, 25915, 28045, 28835, 51830, 56090, 57670, 103660, 112180, 115340, 409457, 818914, 1637828, 2047285, 4094570, 8189140]

約数ペア:

[(1, 8189140), (2, 4094570), (4, 2047285), (5, 1637828), (10, 818914), (20, 409457), (71, 115340), (73, 112180), (79, 103660), (142, 57670), (146, 56090), (158, 51830), (284, 28835), (292, 28045), (316, 25915), (355, 23068), (365, 22436), (395, 20732), (710, 11534), (730, 11218), (790, 10366), (1420, 5767), (1460, 5609), (1580, 5183)]