171640220

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 366569280

約数和(自身を除く): 194929060

約数列:

[1, 2, 4, 5, 10, 20, 113, 173, 226, 346, 439, 452, 565, 692, 865, 878, 1130, 1730, 1756, 2195, 2260, 3460, 4390, 8780, 19549, 39098, 49607, 75947, 78196, 97745, 99214, 151894, 195490, 198428, 248035, 303788, 379735, 390980, 496070, 759470, 992140, 1518940, 8582011, 17164022, 34328044, 42910055, 85820110, 171640220]

約数ペア:

[(1, 171640220), (2, 85820110), (4, 42910055), (5, 34328044), (10, 17164022), (20, 8582011), (113, 1518940), (173, 992140), (226, 759470), (346, 496070), (439, 390980), (452, 379735), (565, 303788), (692, 248035), (865, 198428), (878, 195490), (1130, 151894), (1730, 99214), (1756, 97745), (2195, 78196), (2260, 75947), (3460, 49607), (4390, 39098), (8780, 19549)]