2560260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 7281792

約数和(自身を除く): 4721532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 601, 710, 852, 1065, 1202, 1420, 1803, 2130, 2404, 3005, 3606, 4260, 6010, 7212, 9015, 12020, 18030, 36060, 42671, 85342, 128013, 170684, 213355, 256026, 426710, 512052, 640065, 853420, 1280130, 2560260]

約数ペア:

[(1, 2560260), (2, 1280130), (3, 853420), (4, 640065), (5, 512052), (6, 426710), (10, 256026), (12, 213355), (15, 170684), (20, 128013), (30, 85342), (60, 42671), (71, 36060), (142, 18030), (213, 12020), (284, 9015), (355, 7212), (426, 6010), (601, 4260), (710, 3606), (852, 3005), (1065, 2404), (1202, 2130), (1420, 1803)]