206820880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2657}}^1$

素因数の和:2816

約数の個数: 80

約数和(自身を含む): 553714560

約数和(自身を除く): 346893680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1112, 1390, 1946, 2224, 2657, 2780, 3892, 4865, 5314, 5560, 7784, 9730, 10628, 11120, 13285, 15568, 18599, 19460, 21256, 26570, 37198, 38920, 42512, 53140, 74396, 77840, 92995, 106280, 148792, 185990, 212560, 297584, 369323, 371980, 738646, 743960, 1477292, 1487920, 1846615, 2585261, 2954584, 3693230, 5170522, 5909168, 7386460, 10341044, 12926305, 14772920, 20682088, 25852610, 29545840, 41364176, 51705220, 103410440, 206820880]

約数ペア:

[(1, 206820880), (2, 103410440), (4, 51705220), (5, 41364176), (7, 29545840), (8, 25852610), (10, 20682088), (14, 14772920), (16, 12926305), (20, 10341044), (28, 7386460), (35, 5909168), (40, 5170522), (56, 3693230), (70, 2954584), (80, 2585261), (112, 1846615), (139, 1487920), (140, 1477292), (278, 743960), (280, 738646), (556, 371980), (560, 369323), (695, 297584), (973, 212560), (1112, 185990), (1390, 148792), (1946, 106280), (2224, 92995), (2657, 77840), (2780, 74396), (3892, 53140), (4865, 42512), (5314, 38920), (5560, 37198), (7784, 26570), (9730, 21256), (10628, 19460), (11120, 18599), (13285, 15568)]