18920124

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 50960000

約数和(自身を除く): 32039876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 139, 171, 199, 228, 278, 342, 398, 417, 556, 597, 684, 796, 834, 1194, 1251, 1668, 1791, 2388, 2502, 2641, 3582, 3781, 5004, 5282, 7164, 7562, 7923, 10564, 11343, 15124, 15846, 22686, 23769, 27661, 31692, 34029, 45372, 47538, 55322, 68058, 82983, 95076, 110644, 136116, 165966, 248949, 331932, 497898, 525559, 995796, 1051118, 1576677, 2102236, 3153354, 4730031, 6306708, 9460062, 18920124]

約数ペア:

[(1, 18920124), (2, 9460062), (3, 6306708), (4, 4730031), (6, 3153354), (9, 2102236), (12, 1576677), (18, 1051118), (19, 995796), (36, 525559), (38, 497898), (57, 331932), (76, 248949), (114, 165966), (139, 136116), (171, 110644), (199, 95076), (228, 82983), (278, 68058), (342, 55322), (398, 47538), (417, 45372), (556, 34029), (597, 31692), (684, 27661), (796, 23769), (834, 22686), (1194, 15846), (1251, 15124), (1668, 11343), (1791, 10564), (2388, 7923), (2502, 7562), (2641, 7164), (3582, 5282), (3781, 5004)]