251542060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:548

約数の個数: 144

約数和(自身を含む): 686407680

約数和(自身を除く): 434865620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 121, 124, 140, 154, 155, 217, 220, 242, 308, 310, 341, 385, 434, 479, 484, 605, 620, 682, 770, 847, 868, 958, 1085, 1210, 1364, 1540, 1694, 1705, 1916, 2170, 2387, 2395, 2420, 3353, 3388, 3410, 3751, 4235, 4340, 4774, 4790, 5269, 6706, 6820, 7502, 8470, 9548, 9580, 10538, 11935, 13412, 14849, 15004, 16765, 16940, 18755, 21076, 23870, 26257, 26345, 29698, 33530, 36883, 37510, 47740, 52514, 52690, 57959, 59396, 67060, 73766, 74245, 75020, 103943, 105028, 105380, 115918, 131285, 147532, 148490, 163339, 184415, 207886, 231836, 262570, 289795, 296980, 326678, 368830, 405713, 415772, 519715, 525140, 579590, 653356, 737660, 811426, 816695, 1039430, 1143373, 1159180, 1622852, 1633390, 1796729, 2028565, 2078860, 2286746, 3266780, 3593458, 4057130, 4573492, 5716865, 7186916, 8114260, 8983645, 11433730, 12577103, 17967290, 22867460, 25154206, 35934580, 50308412, 62885515, 125771030, 251542060]

約数ペア:

[(1, 251542060), (2, 125771030), (4, 62885515), (5, 50308412), (7, 35934580), (10, 25154206), (11, 22867460), (14, 17967290), (20, 12577103), (22, 11433730), (28, 8983645), (31, 8114260), (35, 7186916), (44, 5716865), (55, 4573492), (62, 4057130), (70, 3593458), (77, 3266780), (110, 2286746), (121, 2078860), (124, 2028565), (140, 1796729), (154, 1633390), (155, 1622852), (217, 1159180), (220, 1143373), (242, 1039430), (308, 816695), (310, 811426), (341, 737660), (385, 653356), (434, 579590), (479, 525140), (484, 519715), (605, 415772), (620, 405713), (682, 368830), (770, 326678), (847, 296980), (868, 289795), (958, 262570), (1085, 231836), (1210, 207886), (1364, 184415), (1540, 163339), (1694, 148490), (1705, 147532), (1916, 131285), (2170, 115918), (2387, 105380), (2395, 105028), (2420, 103943), (3353, 75020), (3388, 74245), (3410, 73766), (3751, 67060), (4235, 59396), (4340, 57959), (4774, 52690), (4790, 52514), (5269, 47740), (6706, 37510), (6820, 36883), (7502, 33530), (8470, 29698), (9548, 26345), (9580, 26257), (10538, 23870), (11935, 21076), (13412, 18755), (14849, 16940), (15004, 16765)]