520029575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1543}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 747827136

約数和(自身を除く): 227797561

約数列:

[1, 5, 13, 17, 25, 61, 65, 85, 221, 305, 325, 425, 793, 1037, 1105, 1525, 1543, 3965, 5185, 5525, 7715, 13481, 19825, 20059, 25925, 26231, 38575, 67405, 94123, 100295, 131155, 337025, 341003, 470615, 501475, 655775, 1223599, 1600091, 1705015, 2353075, 6117995, 8000455, 8525075, 20801183, 30589975, 40002275, 104005915, 520029575]

約数ペア:

[(1, 520029575), (5, 104005915), (13, 40002275), (17, 30589975), (25, 20801183), (61, 8525075), (65, 8000455), (85, 6117995), (221, 2353075), (305, 1705015), (325, 1600091), (425, 1223599), (793, 655775), (1037, 501475), (1105, 470615), (1525, 341003), (1543, 337025), (3965, 131155), (5185, 100295), (5525, 94123), (7715, 67405), (13481, 38575), (19825, 26231), (20059, 25925)]