20725440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21589}}^1$

素因数の和:21609

約数の個数: 56

約数和(自身を含む): 65806320

約数和(自身を除く): 45080880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 21589, 43178, 64767, 86356, 107945, 129534, 172712, 215890, 259068, 323835, 345424, 431780, 518136, 647670, 690848, 863560, 1036272, 1295340, 1381696, 1727120, 2072544, 2590680, 3454240, 4145088, 5181360, 6908480, 10362720, 20725440]

約数ペア:

[(1, 20725440), (2, 10362720), (3, 6908480), (4, 5181360), (5, 4145088), (6, 3454240), (8, 2590680), (10, 2072544), (12, 1727120), (15, 1381696), (16, 1295340), (20, 1036272), (24, 863560), (30, 690848), (32, 647670), (40, 518136), (48, 431780), (60, 345424), (64, 323835), (80, 259068), (96, 215890), (120, 172712), (160, 129534), (192, 107945), (240, 86356), (320, 64767), (480, 43178), (960, 21589)]