19173236680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{3889}}^1$

素因数の和:4431

約数の個数: 128

約数和(自身を含む): 49014000000

約数和(自身を除く): 29840763320

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 499, 520, 760, 988, 998, 1235, 1976, 1996, 2470, 2495, 3889, 3992, 4940, 4990, 6487, 7778, 9481, 9880, 9980, 12974, 15556, 18962, 19445, 19960, 25948, 31112, 32435, 37924, 38890, 47405, 50557, 51896, 64870, 73891, 75848, 77780, 94810, 101114, 123253, 129740, 147782, 155560, 189620, 202228, 246506, 252785, 259480, 295564, 369455, 379240, 404456, 493012, 505570, 591128, 616265, 738910, 960583, 986024, 1011140, 1232530, 1477820, 1921166, 1940611, 2022280, 2465060, 2955640, 3842332, 3881222, 4802915, 4930120, 7684664, 7762444, 9605830, 9703055, 15524888, 19211660, 19406110, 25227943, 36871609, 38423320, 38812220, 50455886, 73743218, 77624440, 100911772, 126139715, 147486436, 184358045, 201823544, 252279430, 294972872, 368716090, 479330917, 504558860, 737432180, 958661834, 1009117720, 1474864360, 1917323668, 2396654585, 3834647336, 4793309170, 9586618340, 19173236680]

約数ペア:

[(1, 19173236680), (2, 9586618340), (4, 4793309170), (5, 3834647336), (8, 2396654585), (10, 1917323668), (13, 1474864360), (19, 1009117720), (20, 958661834), (26, 737432180), (38, 504558860), (40, 479330917), (52, 368716090), (65, 294972872), (76, 252279430), (95, 201823544), (104, 184358045), (130, 147486436), (152, 126139715), (190, 100911772), (247, 77624440), (260, 73743218), (380, 50455886), (494, 38812220), (499, 38423320), (520, 36871609), (760, 25227943), (988, 19406110), (998, 19211660), (1235, 15524888), (1976, 9703055), (1996, 9605830), (2470, 7762444), (2495, 7684664), (3889, 4930120), (3992, 4802915), (4940, 3881222), (4990, 3842332), (6487, 2955640), (7778, 2465060), (9481, 2022280), (9880, 1940611), (9980, 1921166), (12974, 1477820), (15556, 1232530), (18962, 1011140), (19445, 986024), (19960, 960583), (25948, 738910), (31112, 616265), (32435, 591128), (37924, 505570), (38890, 493012), (47405, 404456), (50557, 379240), (51896, 369455), (64870, 295564), (73891, 259480), (75848, 252785), (77780, 246506), (94810, 202228), (101114, 189620), (123253, 155560), (129740, 147782)]