553660840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1423}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 1273397760

約数和(自身を除く): 719736920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 137, 142, 274, 284, 355, 548, 568, 685, 710, 1096, 1370, 1420, 1423, 2740, 2840, 2846, 5480, 5692, 7115, 9727, 11384, 14230, 19454, 28460, 38908, 48635, 56920, 77816, 97270, 101033, 194540, 194951, 202066, 389080, 389902, 404132, 505165, 779804, 808264, 974755, 1010330, 1559608, 1949510, 2020660, 3899020, 4041320, 7798040, 13841521, 27683042, 55366084, 69207605, 110732168, 138415210, 276830420, 553660840]

約数ペア:

[(1, 553660840), (2, 276830420), (4, 138415210), (5, 110732168), (8, 69207605), (10, 55366084), (20, 27683042), (40, 13841521), (71, 7798040), (137, 4041320), (142, 3899020), (274, 2020660), (284, 1949510), (355, 1559608), (548, 1010330), (568, 974755), (685, 808264), (710, 779804), (1096, 505165), (1370, 404132), (1420, 389902), (1423, 389080), (2740, 202066), (2840, 194951), (2846, 194540), (5480, 101033), (5692, 97270), (7115, 77816), (9727, 56920), (11384, 48635), (14230, 38908), (19454, 28460)]