2659580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 7060704

約数和(自身を除く): 4401124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 157, 220, 242, 308, 314, 385, 484, 605, 628, 770, 785, 847, 1099, 1210, 1540, 1570, 1694, 1727, 2198, 2420, 3140, 3388, 3454, 4235, 4396, 5495, 6908, 8470, 8635, 10990, 12089, 16940, 17270, 18997, 21980, 24178, 34540, 37994, 48356, 60445, 75988, 94985, 120890, 132979, 189970, 241780, 265958, 379940, 531916, 664895, 1329790, 2659580]

約数ペア:

[(1, 2659580), (2, 1329790), (4, 664895), (5, 531916), (7, 379940), (10, 265958), (11, 241780), (14, 189970), (20, 132979), (22, 120890), (28, 94985), (35, 75988), (44, 60445), (55, 48356), (70, 37994), (77, 34540), (110, 24178), (121, 21980), (140, 18997), (154, 17270), (157, 16940), (220, 12089), (242, 10990), (308, 8635), (314, 8470), (385, 6908), (484, 5495), (605, 4396), (628, 4235), (770, 3454), (785, 3388), (847, 3140), (1099, 2420), (1210, 2198), (1540, 1727), (1570, 1694)]