8419220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 18415488

約数和(自身を除く): 9996268

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 103, 122, 134, 206, 244, 268, 305, 335, 412, 515, 610, 670, 1030, 1220, 1340, 2060, 4087, 6283, 6901, 8174, 12566, 13802, 16348, 20435, 25132, 27604, 31415, 34505, 40870, 62830, 69010, 81740, 125660, 138020, 420961, 841922, 1683844, 2104805, 4209610, 8419220]

約数ペア:

[(1, 8419220), (2, 4209610), (4, 2104805), (5, 1683844), (10, 841922), (20, 420961), (61, 138020), (67, 125660), (103, 81740), (122, 69010), (134, 62830), (206, 40870), (244, 34505), (268, 31415), (305, 27604), (335, 25132), (412, 20435), (515, 16348), (610, 13802), (670, 12566), (1030, 8174), (1220, 6901), (1340, 6283), (2060, 4087)]