2165620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 4939200

約数和(自身を除く): 2773580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 139, 164, 190, 205, 278, 380, 410, 556, 695, 779, 820, 1390, 1558, 2641, 2780, 3116, 3895, 5282, 5699, 7790, 10564, 11398, 13205, 15580, 22796, 26410, 28495, 52820, 56990, 108281, 113980, 216562, 433124, 541405, 1082810, 2165620]

約数ペア:

[(1, 2165620), (2, 1082810), (4, 541405), (5, 433124), (10, 216562), (19, 113980), (20, 108281), (38, 56990), (41, 52820), (76, 28495), (82, 26410), (95, 22796), (139, 15580), (164, 13205), (190, 11398), (205, 10564), (278, 7790), (380, 5699), (410, 5282), (556, 3895), (695, 3116), (779, 2780), (820, 2641), (1390, 1558)]