139182440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{21347}}^1$

素因数の和:21521

約数の個数: 32

約数和(自身を含む): 315096480

約数和(自身を除く): 175914040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 21347, 42694, 85388, 106735, 170776, 213470, 426940, 853880, 3479561, 6959122, 13918244, 17397805, 27836488, 34795610, 69591220, 139182440]

約数ペア:

[(1, 139182440), (2, 69591220), (4, 34795610), (5, 27836488), (8, 17397805), (10, 13918244), (20, 6959122), (40, 3479561), (163, 853880), (326, 426940), (652, 213470), (815, 170776), (1304, 106735), (1630, 85388), (3260, 42694), (6520, 21347)]