21800480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 35099104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 65, 80, 94, 104, 130, 160, 188, 208, 223, 235, 260, 376, 416, 446, 470, 520, 611, 752, 892, 940, 1040, 1115, 1222, 1504, 1784, 1880, 2080, 2230, 2444, 2899, 3055, 3568, 3760, 4460, 4888, 5798, 6110, 7136, 7520, 8920, 9776, 10481, 11596, 12220, 14495, 17840, 19552, 20962, 23192, 24440, 28990, 35680, 41924, 46384, 48880, 52405, 57980, 83848, 92768, 97760, 104810, 115960, 136253, 167696, 209620, 231920, 272506, 335392, 419240, 463840, 545012, 681265, 838480, 1090024, 1362530, 1676960, 2180048, 2725060, 4360096, 5450120, 10900240, 21800480]

約数ペア:

[(1, 21800480), (2, 10900240), (4, 5450120), (5, 4360096), (8, 2725060), (10, 2180048), (13, 1676960), (16, 1362530), (20, 1090024), (26, 838480), (32, 681265), (40, 545012), (47, 463840), (52, 419240), (65, 335392), (80, 272506), (94, 231920), (104, 209620), (130, 167696), (160, 136253), (188, 115960), (208, 104810), (223, 97760), (235, 92768), (260, 83848), (376, 57980), (416, 52405), (446, 48880), (470, 46384), (520, 41924), (611, 35680), (752, 28990), (892, 24440), (940, 23192), (1040, 20962), (1115, 19552), (1222, 17840), (1504, 14495), (1784, 12220), (1880, 11596), (2080, 10481), (2230, 9776), (2444, 8920), (2899, 7520), (3055, 7136), (3568, 6110), (3760, 5798), (4460, 4888)]