252211220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{64013}}^1$

素因数の和:64219

約数の個数: 24

約数和(自身を含む): 532340424

約数和(自身を除く): 280129204

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 64013, 128026, 256052, 320065, 640130, 1280260, 12610561, 25221122, 50442244, 63052805, 126105610, 252211220]

約数ペア:

[(1, 252211220), (2, 126105610), (4, 63052805), (5, 50442244), (10, 25221122), (20, 12610561), (197, 1280260), (394, 640130), (788, 320065), (985, 256052), (1970, 128026), (3940, 64013)]