28397860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 62157312

約数和(自身を除く): 33759452

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 163, 281, 310, 326, 562, 620, 652, 815, 1124, 1405, 1630, 2810, 3260, 5053, 5620, 8711, 10106, 17422, 20212, 25265, 34844, 43555, 45803, 50530, 87110, 91606, 101060, 174220, 183212, 229015, 458030, 916060, 1419893, 2839786, 5679572, 7099465, 14198930, 28397860]

約数ペア:

[(1, 28397860), (2, 14198930), (4, 7099465), (5, 5679572), (10, 2839786), (20, 1419893), (31, 916060), (62, 458030), (124, 229015), (155, 183212), (163, 174220), (281, 101060), (310, 91606), (326, 87110), (562, 50530), (620, 45803), (652, 43555), (815, 34844), (1124, 25265), (1405, 20212), (1630, 17422), (2810, 10106), (3260, 8711), (5053, 5620)]