31005340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{587}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 69148800

約数和(自身を除く): 38143460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 587, 695, 1174, 1390, 2348, 2641, 2780, 2935, 5282, 5870, 10564, 11153, 11740, 13205, 22306, 26410, 44612, 52820, 55765, 81593, 111530, 163186, 223060, 326372, 407965, 815930, 1550267, 1631860, 3100534, 6201068, 7751335, 15502670, 31005340]

約数ペア:

[(1, 31005340), (2, 15502670), (4, 7751335), (5, 6201068), (10, 3100534), (19, 1631860), (20, 1550267), (38, 815930), (76, 407965), (95, 326372), (139, 223060), (190, 163186), (278, 111530), (380, 81593), (556, 55765), (587, 52820), (695, 44612), (1174, 26410), (1390, 22306), (2348, 13205), (2641, 11740), (2780, 11153), (2935, 10564), (5282, 5870)]