80540475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 142178400

約数和(自身を除く): 61637925

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 181, 255, 349, 425, 543, 905, 1047, 1275, 1745, 2715, 3077, 4525, 5235, 5933, 8725, 9231, 13575, 15385, 17799, 26175, 29665, 46155, 63169, 76925, 88995, 148325, 189507, 230775, 315845, 444975, 947535, 1073873, 1579225, 3221619, 4737675, 5369365, 16108095, 26846825, 80540475]

約数ペア:

[(1, 80540475), (3, 26846825), (5, 16108095), (15, 5369365), (17, 4737675), (25, 3221619), (51, 1579225), (75, 1073873), (85, 947535), (181, 444975), (255, 315845), (349, 230775), (425, 189507), (543, 148325), (905, 88995), (1047, 76925), (1275, 63169), (1745, 46155), (2715, 29665), (3077, 26175), (4525, 17799), (5235, 15385), (5933, 13575), (8725, 9231)]