2420940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 6848352

約数和(自身を除く): 4427412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 257, 314, 471, 514, 628, 771, 785, 942, 1028, 1285, 1542, 1570, 1884, 2355, 2570, 3084, 3140, 3855, 4710, 5140, 7710, 9420, 15420, 40349, 80698, 121047, 161396, 201745, 242094, 403490, 484188, 605235, 806980, 1210470, 2420940]

約数ペア:

[(1, 2420940), (2, 1210470), (3, 806980), (4, 605235), (5, 484188), (6, 403490), (10, 242094), (12, 201745), (15, 161396), (20, 121047), (30, 80698), (60, 40349), (157, 15420), (257, 9420), (314, 7710), (471, 5140), (514, 4710), (628, 3855), (771, 3140), (785, 3084), (942, 2570), (1028, 2355), (1285, 1884), (1542, 1570)]