89931440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^2\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 60

約数和(自身を含む): 213028032

約数和(自身を除く): 123096592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 223, 284, 355, 446, 568, 710, 892, 1115, 1136, 1420, 1784, 2230, 2840, 3568, 4460, 5041, 5680, 8920, 10082, 15833, 17840, 20164, 25205, 31666, 40328, 50410, 63332, 79165, 80656, 100820, 126664, 158330, 201640, 253328, 316660, 403280, 633320, 1124143, 1266640, 2248286, 4496572, 5620715, 8993144, 11241430, 17986288, 22482860, 44965720, 89931440]

約数ペア:

[(1, 89931440), (2, 44965720), (4, 22482860), (5, 17986288), (8, 11241430), (10, 8993144), (16, 5620715), (20, 4496572), (40, 2248286), (71, 1266640), (80, 1124143), (142, 633320), (223, 403280), (284, 316660), (355, 253328), (446, 201640), (568, 158330), (710, 126664), (892, 100820), (1115, 80656), (1136, 79165), (1420, 63332), (1784, 50410), (2230, 40328), (2840, 31666), (3568, 25205), (4460, 20164), (5041, 17840), (5680, 15833), (8920, 10082)]