131421556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 290304000

約数和(自身を除く): 158882444

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 53, 59, 76, 79, 106, 118, 133, 158, 212, 236, 266, 316, 371, 413, 532, 553, 742, 826, 1007, 1106, 1121, 1484, 1501, 1652, 2014, 2212, 2242, 3002, 3127, 4028, 4187, 4484, 4661, 6004, 6254, 7049, 7847, 8374, 9322, 10507, 12508, 14098, 15694, 16748, 18644, 21014, 21889, 28196, 29309, 31388, 32627, 42028, 43778, 58618, 59413, 65254, 79553, 87556, 88559, 117236, 118826, 130508, 159106, 177118, 237652, 247033, 318212, 354236, 415891, 494066, 556871, 619913, 831782, 988132, 1113742, 1239826, 1663564, 1729231, 2227484, 2479652, 3458462, 4693627, 6916924, 9387254, 18774508, 32855389, 65710778, 131421556]

約数ペア:

[(1, 131421556), (2, 65710778), (4, 32855389), (7, 18774508), (14, 9387254), (19, 6916924), (28, 4693627), (38, 3458462), (53, 2479652), (59, 2227484), (76, 1729231), (79, 1663564), (106, 1239826), (118, 1113742), (133, 988132), (158, 831782), (212, 619913), (236, 556871), (266, 494066), (316, 415891), (371, 354236), (413, 318212), (532, 247033), (553, 237652), (742, 177118), (826, 159106), (1007, 130508), (1106, 118826), (1121, 117236), (1484, 88559), (1501, 87556), (1652, 79553), (2014, 65254), (2212, 59413), (2242, 58618), (3002, 43778), (3127, 42028), (4028, 32627), (4187, 31388), (4484, 29309), (4661, 28196), (6004, 21889), (6254, 21014), (7049, 18644), (7847, 16748), (8374, 15694), (9322, 14098), (10507, 12508)]