890992060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{20333}}^1$

素因数の和:20662

約数の個数: 48

約数和(自身を含む): 2145318336

約数和(自身を除く): 1254326276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 1252, 1565, 2191, 3130, 4382, 6260, 8764, 10955, 20333, 21910, 40666, 43820, 81332, 101665, 142331, 203330, 284662, 406660, 569324, 711655, 1423310, 2846620, 6364229, 12728458, 25456916, 31821145, 44549603, 63642290, 89099206, 127284580, 178198412, 222748015, 445496030, 890992060]

約数ペア:

[(1, 890992060), (2, 445496030), (4, 222748015), (5, 178198412), (7, 127284580), (10, 89099206), (14, 63642290), (20, 44549603), (28, 31821145), (35, 25456916), (70, 12728458), (140, 6364229), (313, 2846620), (626, 1423310), (1252, 711655), (1565, 569324), (2191, 406660), (3130, 284662), (4382, 203330), (6260, 142331), (8764, 101665), (10955, 81332), (20333, 43820), (21910, 40666)]