251320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 580320

約数和(自身を除く): 329000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 103, 122, 206, 244, 305, 412, 488, 515, 610, 824, 1030, 1220, 2060, 2440, 4120, 6283, 12566, 25132, 31415, 50264, 62830, 125660, 251320]

約数ペア:

[(1, 251320), (2, 125660), (4, 62830), (5, 50264), (8, 31415), (10, 25132), (20, 12566), (40, 6283), (61, 4120), (103, 2440), (122, 2060), (206, 1220), (244, 1030), (305, 824), (412, 610), (488, 515)]