502640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:177

約数の個数: 40

約数和(自身を含む): 1199328

約数和(自身を除く): 696688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 103, 122, 206, 244, 305, 412, 488, 515, 610, 824, 976, 1030, 1220, 1648, 2060, 2440, 4120, 4880, 6283, 8240, 12566, 25132, 31415, 50264, 62830, 100528, 125660, 251320, 502640]

約数ペア:

[(1, 502640), (2, 251320), (4, 125660), (5, 100528), (8, 62830), (10, 50264), (16, 31415), (20, 25132), (40, 12566), (61, 8240), (80, 6283), (103, 4880), (122, 4120), (206, 2440), (244, 2060), (305, 1648), (412, 1220), (488, 1030), (515, 976), (610, 824)]