2720940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 7711200

約数和(自身を除く): 4990260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 449, 505, 606, 898, 1010, 1212, 1347, 1515, 1796, 2020, 2245, 2694, 3030, 4490, 5388, 6060, 6735, 8980, 13470, 26940, 45349, 90698, 136047, 181396, 226745, 272094, 453490, 544188, 680235, 906980, 1360470, 2720940]

約数ペア:

[(1, 2720940), (2, 1360470), (3, 906980), (4, 680235), (5, 544188), (6, 453490), (10, 272094), (12, 226745), (15, 181396), (20, 136047), (30, 90698), (60, 45349), (101, 26940), (202, 13470), (303, 8980), (404, 6735), (449, 6060), (505, 5388), (606, 4490), (898, 3030), (1010, 2694), (1212, 2245), (1347, 2020), (1515, 1796)]