20174971960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{13411}}^1$

素因数の和:13709

約数の個数: 128

約数和(自身を含む): 53536412160

約数和(自身を除く): 33361440200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 263, 286, 440, 520, 526, 572, 715, 1052, 1144, 1315, 1430, 2104, 2630, 2860, 2893, 3419, 5260, 5720, 5786, 6838, 10520, 11572, 13411, 13676, 14465, 17095, 23144, 26822, 27352, 28930, 34190, 37609, 53644, 57860, 67055, 68380, 75218, 107288, 115720, 134110, 136760, 147521, 150436, 174343, 188045, 268220, 295042, 300872, 348686, 376090, 536440, 590084, 697372, 737605, 752180, 871715, 1180168, 1394744, 1475210, 1504360, 1743430, 1917773, 2950420, 3486860, 3527093, 3835546, 5900840, 6973720, 7054186, 7671092, 9588865, 14108372, 15342184, 17635465, 19177730, 28216744, 35270930, 38355460, 38798023, 45852209, 70541860, 76710920, 77596046, 91704418, 141083720, 155192092, 183408836, 193990115, 229261045, 310384184, 366817672, 387980230, 458522090, 504374299, 775960460, 917044180, 1008748598, 1551920920, 1834088360, 2017497196, 2521871495, 4034994392, 5043742990, 10087485980, 20174971960]

約数ペア:

[(1, 20174971960), (2, 10087485980), (4, 5043742990), (5, 4034994392), (8, 2521871495), (10, 2017497196), (11, 1834088360), (13, 1551920920), (20, 1008748598), (22, 917044180), (26, 775960460), (40, 504374299), (44, 458522090), (52, 387980230), (55, 366817672), (65, 310384184), (88, 229261045), (104, 193990115), (110, 183408836), (130, 155192092), (143, 141083720), (220, 91704418), (260, 77596046), (263, 76710920), (286, 70541860), (440, 45852209), (520, 38798023), (526, 38355460), (572, 35270930), (715, 28216744), (1052, 19177730), (1144, 17635465), (1315, 15342184), (1430, 14108372), (2104, 9588865), (2630, 7671092), (2860, 7054186), (2893, 6973720), (3419, 5900840), (5260, 3835546), (5720, 3527093), (5786, 3486860), (6838, 2950420), (10520, 1917773), (11572, 1743430), (13411, 1504360), (13676, 1475210), (14465, 1394744), (17095, 1180168), (23144, 871715), (26822, 752180), (27352, 737605), (28930, 697372), (34190, 590084), (37609, 536440), (53644, 376090), (57860, 348686), (67055, 300872), (68380, 295042), (75218, 268220), (107288, 188045), (115720, 174343), (134110, 150436), (136760, 147521)]