128992120

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{14461}}^1$

素因数の和:14695

約数の個数: 32

約数和(自身を含む): 291553920

約数和(自身を除く): 162561800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 14461, 28922, 57844, 72305, 115688, 144610, 289220, 578440, 3224803, 6449606, 12899212, 16124015, 25798424, 32248030, 64496060, 128992120]

約数ペア:

[(1, 128992120), (2, 64496060), (4, 32248030), (5, 25798424), (8, 16124015), (10, 12899212), (20, 6449606), (40, 3224803), (223, 578440), (446, 289220), (892, 144610), (1115, 115688), (1784, 72305), (2230, 57844), (4460, 28922), (8920, 14461)]