1218520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 2812320

約数和(自身を除く): 1593800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 743, 820, 1486, 1640, 2972, 3715, 5944, 7430, 14860, 29720, 30463, 60926, 121852, 152315, 243704, 304630, 609260, 1218520]

約数ペア:

[(1, 1218520), (2, 609260), (4, 304630), (5, 243704), (8, 152315), (10, 121852), (20, 60926), (40, 30463), (41, 29720), (82, 14860), (164, 7430), (205, 5944), (328, 3715), (410, 2972), (743, 1640), (820, 1486)]