261409974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 607606272

約数和(自身を除く): 346196298

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 181, 251, 274, 362, 411, 502, 543, 753, 822, 959, 1086, 1267, 1506, 1757, 1918, 2534, 2877, 3514, 3801, 5271, 5754, 7602, 10542, 24797, 34387, 45431, 49594, 68774, 74391, 90862, 103161, 136293, 148782, 173579, 206322, 240709, 272586, 318017, 347158, 481418, 520737, 636034, 722127, 954051, 1041474, 1444254, 1908102, 6224047, 12448094, 18672141, 37344282, 43568329, 87136658, 130704987, 261409974]

約数ペア:

[(1, 261409974), (2, 130704987), (3, 87136658), (6, 43568329), (7, 37344282), (14, 18672141), (21, 12448094), (42, 6224047), (137, 1908102), (181, 1444254), (251, 1041474), (274, 954051), (362, 722127), (411, 636034), (502, 520737), (543, 481418), (753, 347158), (822, 318017), (959, 272586), (1086, 240709), (1267, 206322), (1506, 173579), (1757, 148782), (1918, 136293), (2534, 103161), (2877, 90862), (3514, 74391), (3801, 68774), (5271, 49594), (5754, 45431), (7602, 34387), (10542, 24797)]