40520775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 72236448

約数和(自身を除く): 31715673

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 255, 305, 425, 521, 915, 1037, 1275, 1525, 1563, 2605, 3111, 4575, 5185, 7815, 8857, 13025, 15555, 25925, 26571, 31781, 39075, 44285, 77775, 95343, 132855, 158905, 221425, 476715, 540277, 664275, 794525, 1620831, 2383575, 2701385, 8104155, 13506925, 40520775]

約数ペア:

[(1, 40520775), (3, 13506925), (5, 8104155), (15, 2701385), (17, 2383575), (25, 1620831), (51, 794525), (61, 664275), (75, 540277), (85, 476715), (183, 221425), (255, 158905), (305, 132855), (425, 95343), (521, 77775), (915, 44285), (1037, 39075), (1275, 31781), (1525, 26571), (1563, 25925), (2605, 15555), (3111, 13025), (4575, 8857), (5185, 7815)]