219762040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 505128960

約数和(自身を除く): 285366920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 223, 284, 347, 355, 446, 568, 694, 710, 892, 1115, 1388, 1420, 1735, 1784, 2230, 2776, 2840, 3470, 4460, 6940, 8920, 13880, 15833, 24637, 31666, 49274, 63332, 77381, 79165, 98548, 123185, 126664, 154762, 158330, 197096, 246370, 309524, 316660, 386905, 492740, 619048, 633320, 773810, 985480, 1547620, 3095240, 5494051, 10988102, 21976204, 27470255, 43952408, 54940510, 109881020, 219762040]

約数ペア:

[(1, 219762040), (2, 109881020), (4, 54940510), (5, 43952408), (8, 27470255), (10, 21976204), (20, 10988102), (40, 5494051), (71, 3095240), (142, 1547620), (223, 985480), (284, 773810), (347, 633320), (355, 619048), (446, 492740), (568, 386905), (694, 316660), (710, 309524), (892, 246370), (1115, 197096), (1388, 158330), (1420, 154762), (1735, 126664), (1784, 123185), (2230, 98548), (2776, 79165), (2840, 77381), (3470, 63332), (4460, 49274), (6940, 31666), (8920, 24637), (13880, 15833)]