80297840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:886

約数の個数: 80

約数和(自身を含む): 214652928

約数和(自身を除く): 134355088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 446, 560, 643, 892, 1115, 1286, 1561, 1784, 2230, 2572, 3122, 3215, 3568, 4460, 4501, 5144, 6244, 6430, 7805, 8920, 9002, 10288, 12488, 12860, 15610, 17840, 18004, 22505, 24976, 25720, 31220, 36008, 45010, 51440, 62440, 72016, 90020, 124880, 143389, 180040, 286778, 360080, 573556, 716945, 1003723, 1147112, 1433890, 2007446, 2294224, 2867780, 4014892, 5018615, 5735560, 8029784, 10037230, 11471120, 16059568, 20074460, 40148920, 80297840]

約数ペア:

[(1, 80297840), (2, 40148920), (4, 20074460), (5, 16059568), (7, 11471120), (8, 10037230), (10, 8029784), (14, 5735560), (16, 5018615), (20, 4014892), (28, 2867780), (35, 2294224), (40, 2007446), (56, 1433890), (70, 1147112), (80, 1003723), (112, 716945), (140, 573556), (223, 360080), (280, 286778), (446, 180040), (560, 143389), (643, 124880), (892, 90020), (1115, 72016), (1286, 62440), (1561, 51440), (1784, 45010), (2230, 36008), (2572, 31220), (3122, 25720), (3215, 24976), (3568, 22505), (4460, 18004), (4501, 17840), (5144, 15610), (6244, 12860), (6430, 12488), (7805, 10288), (8920, 9002)]