18444260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 40303872

約数和(自身を除く): 21859612

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 271, 332, 410, 415, 542, 820, 830, 1084, 1355, 1660, 2710, 3403, 5420, 6806, 11111, 13612, 17015, 22222, 22493, 34030, 44444, 44986, 55555, 68060, 89972, 111110, 112465, 222220, 224930, 449860, 922213, 1844426, 3688852, 4611065, 9222130, 18444260]

約数ペア:

[(1, 18444260), (2, 9222130), (4, 4611065), (5, 3688852), (10, 1844426), (20, 922213), (41, 449860), (82, 224930), (83, 222220), (164, 112465), (166, 111110), (205, 89972), (271, 68060), (332, 55555), (410, 44986), (415, 44444), (542, 34030), (820, 22493), (830, 22222), (1084, 17015), (1355, 13612), (1660, 11111), (2710, 6806), (3403, 5420)]