20979296

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 27283744

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 37, 47, 52, 58, 74, 94, 104, 116, 148, 188, 208, 232, 296, 376, 377, 416, 464, 481, 592, 611, 752, 754, 928, 962, 1073, 1184, 1222, 1363, 1504, 1508, 1739, 1924, 2146, 2444, 2726, 3016, 3478, 3848, 4292, 4888, 5452, 6032, 6956, 7696, 8584, 9776, 10904, 12064, 13912, 13949, 15392, 17168, 17719, 19552, 21808, 22607, 27824, 27898, 34336, 35438, 43616, 45214, 50431, 55648, 55796, 70876, 90428, 100862, 111592, 141752, 180856, 201724, 223184, 283504, 361712, 403448, 446368, 567008, 655603, 723424, 806896, 1311206, 1613792, 2622412, 5244824, 10489648, 20979296]

約数ペア:

[(1, 20979296), (2, 10489648), (4, 5244824), (8, 2622412), (13, 1613792), (16, 1311206), (26, 806896), (29, 723424), (32, 655603), (37, 567008), (47, 446368), (52, 403448), (58, 361712), (74, 283504), (94, 223184), (104, 201724), (116, 180856), (148, 141752), (188, 111592), (208, 100862), (232, 90428), (296, 70876), (376, 55796), (377, 55648), (416, 50431), (464, 45214), (481, 43616), (592, 35438), (611, 34336), (752, 27898), (754, 27824), (928, 22607), (962, 21808), (1073, 19552), (1184, 17719), (1222, 17168), (1363, 15392), (1504, 13949), (1508, 13912), (1739, 12064), (1924, 10904), (2146, 9776), (2444, 8584), (2726, 7696), (3016, 6956), (3478, 6032), (3848, 5452), (4292, 4888)]