12421840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 31033728

約数和(自身を除く): 18611888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 43, 46, 80, 86, 92, 115, 157, 172, 184, 215, 230, 314, 344, 368, 430, 460, 628, 688, 785, 860, 920, 989, 1256, 1570, 1720, 1840, 1978, 2512, 3140, 3440, 3611, 3956, 4945, 6280, 6751, 7222, 7912, 9890, 12560, 13502, 14444, 15824, 18055, 19780, 27004, 28888, 33755, 36110, 39560, 54008, 57776, 67510, 72220, 79120, 108016, 135020, 144440, 155273, 270040, 288880, 310546, 540080, 621092, 776365, 1242184, 1552730, 2484368, 3105460, 6210920, 12421840]

約数ペア:

[(1, 12421840), (2, 6210920), (4, 3105460), (5, 2484368), (8, 1552730), (10, 1242184), (16, 776365), (20, 621092), (23, 540080), (40, 310546), (43, 288880), (46, 270040), (80, 155273), (86, 144440), (92, 135020), (115, 108016), (157, 79120), (172, 72220), (184, 67510), (215, 57776), (230, 54008), (314, 39560), (344, 36110), (368, 33755), (430, 28888), (460, 27004), (628, 19780), (688, 18055), (785, 15824), (860, 14444), (920, 13502), (989, 12560), (1256, 9890), (1570, 7912), (1720, 7222), (1840, 6751), (1978, 6280), (2512, 4945), (3140, 3956), (3440, 3611)]