20389968140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{14051}}^1$

素因数の和:14187

約数の個数: 72

約数和(自身を含む): 44840999952

約数和(自身を除く): 24451031812

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 530, 740, 1060, 1369, 1961, 2738, 3922, 5476, 6845, 7844, 9805, 13690, 14051, 19610, 27380, 28102, 39220, 56204, 70255, 72557, 140510, 145114, 281020, 290228, 362785, 519887, 725570, 744703, 1039774, 1451140, 1489406, 2079548, 2599435, 2978812, 3723515, 5198870, 7447030, 10397740, 14894060, 19235819, 27554011, 38471638, 55108022, 76943276, 96179095, 110216044, 137770055, 192358190, 275540110, 384716380, 551080220, 1019498407, 2038996814, 4077993628, 5097492035, 10194984070, 20389968140]

約数ペア:

[(1, 20389968140), (2, 10194984070), (4, 5097492035), (5, 4077993628), (10, 2038996814), (20, 1019498407), (37, 551080220), (53, 384716380), (74, 275540110), (106, 192358190), (148, 137770055), (185, 110216044), (212, 96179095), (265, 76943276), (370, 55108022), (530, 38471638), (740, 27554011), (1060, 19235819), (1369, 14894060), (1961, 10397740), (2738, 7447030), (3922, 5198870), (5476, 3723515), (6845, 2978812), (7844, 2599435), (9805, 2079548), (13690, 1489406), (14051, 1451140), (19610, 1039774), (27380, 744703), (28102, 725570), (39220, 519887), (56204, 362785), (70255, 290228), (72557, 281020), (140510, 145114)]