20565710984

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1\times {\mathrm{743}}^1$

素因数の和:1159

約数の個数: 128

約数和(自身を含む): 48011927040

約数和(自身を除く): 27446216056

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 193, 197, 364, 386, 394, 728, 743, 772, 788, 1351, 1379, 1486, 1544, 1576, 2509, 2561, 2702, 2758, 2972, 5018, 5122, 5201, 5404, 5516, 5944, 9659, 10036, 10244, 10402, 10808, 11032, 17563, 17927, 19318, 20072, 20488, 20804, 35126, 35854, 38021, 38636, 41608, 67613, 70252, 71708, 76042, 77272, 135226, 140504, 143399, 143416, 146371, 152084, 266147, 270452, 286798, 292742, 304168, 494273, 532294, 540904, 573596, 585484, 988546, 1003793, 1024597, 1064588, 1147192, 1170968, 1864187, 1902823, 1977092, 2007586, 2049194, 2129176, 3459911, 3728374, 3805646, 3954184, 4015172, 4098388, 6919822, 7456748, 7611292, 8030344, 8196776, 13049309, 13319761, 13839644, 14913496, 15222584, 26098618, 26639522, 27679288, 28249603, 52197236, 53279044, 56499206, 104394472, 106558088, 112998412, 197747221, 225996824, 367244839, 395494442, 734489678, 790988884, 1468979356, 1581977768, 2570713873, 2937958712, 5141427746, 10282855492, 20565710984]

約数ペア:

[(1, 20565710984), (2, 10282855492), (4, 5141427746), (7, 2937958712), (8, 2570713873), (13, 1581977768), (14, 1468979356), (26, 790988884), (28, 734489678), (52, 395494442), (56, 367244839), (91, 225996824), (104, 197747221), (182, 112998412), (193, 106558088), (197, 104394472), (364, 56499206), (386, 53279044), (394, 52197236), (728, 28249603), (743, 27679288), (772, 26639522), (788, 26098618), (1351, 15222584), (1379, 14913496), (1486, 13839644), (1544, 13319761), (1576, 13049309), (2509, 8196776), (2561, 8030344), (2702, 7611292), (2758, 7456748), (2972, 6919822), (5018, 4098388), (5122, 4015172), (5201, 3954184), (5404, 3805646), (5516, 3728374), (5944, 3459911), (9659, 2129176), (10036, 2049194), (10244, 2007586), (10402, 1977092), (10808, 1902823), (11032, 1864187), (17563, 1170968), (17927, 1147192), (19318, 1064588), (20072, 1024597), (20488, 1003793), (20804, 988546), (35126, 585484), (35854, 573596), (38021, 540904), (38636, 532294), (41608, 494273), (67613, 304168), (70252, 292742), (71708, 286798), (76042, 270452), (77272, 266147), (135226, 152084), (140504, 146371), (143399, 143416)]