427071760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 1025934336

約数和(自身を除く): 598862576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 223, 296, 370, 446, 592, 647, 740, 892, 1115, 1294, 1480, 1784, 2230, 2588, 2960, 3235, 3568, 4460, 5176, 6470, 8251, 8920, 10352, 12940, 16502, 17840, 23939, 25880, 33004, 41255, 47878, 51760, 66008, 82510, 95756, 119695, 132016, 144281, 165020, 191512, 239390, 288562, 330040, 383024, 478780, 577124, 660080, 721405, 957560, 1154248, 1442810, 1915120, 2308496, 2885620, 5338397, 5771240, 10676794, 11542480, 21353588, 26691985, 42707176, 53383970, 85414352, 106767940, 213535880, 427071760]

約数ペア:

[(1, 427071760), (2, 213535880), (4, 106767940), (5, 85414352), (8, 53383970), (10, 42707176), (16, 26691985), (20, 21353588), (37, 11542480), (40, 10676794), (74, 5771240), (80, 5338397), (148, 2885620), (185, 2308496), (223, 1915120), (296, 1442810), (370, 1154248), (446, 957560), (592, 721405), (647, 660080), (740, 577124), (892, 478780), (1115, 383024), (1294, 330040), (1480, 288562), (1784, 239390), (2230, 191512), (2588, 165020), (2960, 144281), (3235, 132016), (3568, 119695), (4460, 95756), (5176, 82510), (6470, 66008), (8251, 51760), (8920, 47878), (10352, 41255), (12940, 33004), (16502, 25880), (17840, 23939)]