20788492040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{3529}}^1$

素因数の和:3919

約数の個数: 128

約数和(自身を含む): 51543648000

約数和(自身を除く): 30755155960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 337, 380, 437, 460, 674, 760, 874, 920, 1348, 1685, 1748, 2185, 2696, 3370, 3496, 3529, 4370, 6403, 6740, 7058, 7751, 8740, 12806, 13480, 14116, 15502, 17480, 17645, 25612, 28232, 31004, 32015, 35290, 38755, 51224, 62008, 64030, 67051, 70580, 77510, 81167, 128060, 134102, 141160, 147269, 155020, 162334, 256120, 268204, 294538, 310040, 324668, 335255, 405835, 536408, 589076, 649336, 670510, 736345, 811670, 1178152, 1189273, 1341020, 1472690, 1542173, 1623340, 2378546, 2682040, 2945380, 3084346, 3246680, 4757092, 5890760, 5946365, 6168692, 7710865, 9514184, 11892730, 12337384, 15421730, 22596187, 23785460, 27353279, 30843460, 45192374, 47570920, 54706558, 61686920, 90384748, 109413116, 112980935, 136766395, 180769496, 218826232, 225961870, 273532790, 451923740, 519712301, 547065580, 903847480, 1039424602, 1094131160, 2078849204, 2598561505, 4157698408, 5197123010, 10394246020, 20788492040]

約数ペア:

[(1, 20788492040), (2, 10394246020), (4, 5197123010), (5, 4157698408), (8, 2598561505), (10, 2078849204), (19, 1094131160), (20, 1039424602), (23, 903847480), (38, 547065580), (40, 519712301), (46, 451923740), (76, 273532790), (92, 225961870), (95, 218826232), (115, 180769496), (152, 136766395), (184, 112980935), (190, 109413116), (230, 90384748), (337, 61686920), (380, 54706558), (437, 47570920), (460, 45192374), (674, 30843460), (760, 27353279), (874, 23785460), (920, 22596187), (1348, 15421730), (1685, 12337384), (1748, 11892730), (2185, 9514184), (2696, 7710865), (3370, 6168692), (3496, 5946365), (3529, 5890760), (4370, 4757092), (6403, 3246680), (6740, 3084346), (7058, 2945380), (7751, 2682040), (8740, 2378546), (12806, 1623340), (13480, 1542173), (14116, 1472690), (15502, 1341020), (17480, 1189273), (17645, 1178152), (25612, 811670), (28232, 736345), (31004, 670510), (32015, 649336), (35290, 589076), (38755, 536408), (51224, 405835), (62008, 335255), (64030, 324668), (67051, 310040), (70580, 294538), (77510, 268204), (81167, 256120), (128060, 162334), (134102, 155020), (141160, 147269)]