258642020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{142111}}^1$

素因数の和:142140

約数の個数: 48

約数和(自身を含む): 668494848

約数和(自身を除く): 409852828

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, 910, 1820, 142111, 284222, 568444, 710555, 994777, 1421110, 1847443, 1989554, 2842220, 3694886, 3979108, 4973885, 7389772, 9237215, 9947770, 12932101, 18474430, 19895540, 25864202, 36948860, 51728404, 64660505, 129321010, 258642020]

約数ペア:

[(1, 258642020), (2, 129321010), (4, 64660505), (5, 51728404), (7, 36948860), (10, 25864202), (13, 19895540), (14, 18474430), (20, 12932101), (26, 9947770), (28, 9237215), (35, 7389772), (52, 4973885), (65, 3979108), (70, 3694886), (91, 2842220), (130, 1989554), (140, 1847443), (182, 1421110), (260, 994777), (364, 710555), (455, 568444), (910, 284222), (1820, 142111)]