20419380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6673}}^1$

素因数の和:6705

約数の個数: 72

約数和(自身を含む): 65592072

約数和(自身を除く): 45172692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6673, 13346, 20019, 26692, 33365, 40038, 60057, 66730, 80076, 100095, 113441, 120114, 133460, 200190, 226882, 240228, 300285, 340323, 400380, 453764, 567205, 600570, 680646, 1020969, 1134410, 1201140, 1361292, 1701615, 2041938, 2268820, 3403230, 4083876, 5104845, 6806460, 10209690, 20419380]

約数ペア:

[(1, 20419380), (2, 10209690), (3, 6806460), (4, 5104845), (5, 4083876), (6, 3403230), (9, 2268820), (10, 2041938), (12, 1701615), (15, 1361292), (17, 1201140), (18, 1134410), (20, 1020969), (30, 680646), (34, 600570), (36, 567205), (45, 453764), (51, 400380), (60, 340323), (68, 300285), (85, 240228), (90, 226882), (102, 200190), (153, 133460), (170, 120114), (180, 113441), (204, 100095), (255, 80076), (306, 66730), (340, 60057), (510, 40038), (612, 33365), (765, 26692), (1020, 20019), (1530, 13346), (3060, 6673)]