217402760

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{74453}}^1$

素因数の和:74537

約数の個数: 32

約数和(自身を含む): 495863640

約数和(自身を除く): 278460880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 74453, 148906, 297812, 372265, 595624, 744530, 1489060, 2978120, 5435069, 10870138, 21740276, 27175345, 43480552, 54350690, 108701380, 217402760]

約数ペア:

[(1, 217402760), (2, 108701380), (4, 54350690), (5, 43480552), (8, 27175345), (10, 21740276), (20, 10870138), (40, 5435069), (73, 2978120), (146, 1489060), (292, 744530), (365, 595624), (584, 372265), (730, 297812), (1460, 148906), (2920, 74453)]