16838440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 39461760

約数和(自身を除く): 22623320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 67, 103, 122, 134, 206, 244, 268, 305, 335, 412, 488, 515, 536, 610, 670, 824, 1030, 1220, 1340, 2060, 2440, 2680, 4087, 4120, 6283, 6901, 8174, 12566, 13802, 16348, 20435, 25132, 27604, 31415, 32696, 34505, 40870, 50264, 55208, 62830, 69010, 81740, 125660, 138020, 163480, 251320, 276040, 420961, 841922, 1683844, 2104805, 3367688, 4209610, 8419220, 16838440]

約数ペア:

[(1, 16838440), (2, 8419220), (4, 4209610), (5, 3367688), (8, 2104805), (10, 1683844), (20, 841922), (40, 420961), (61, 276040), (67, 251320), (103, 163480), (122, 138020), (134, 125660), (206, 81740), (244, 69010), (268, 62830), (305, 55208), (335, 50264), (412, 40870), (488, 34505), (515, 32696), (536, 31415), (610, 27604), (670, 25132), (824, 20435), (1030, 16348), (1220, 13802), (1340, 12566), (2060, 8174), (2440, 6901), (2680, 6283), (4087, 4120)]