1999987730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1303}}^1\times {\mathrm{11807}}^1$

素因数の和:13130

約数の個数: 32

約数和(自身を含む): 3880203264

約数和(自身を除く): 1880215534

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1303, 2606, 6515, 11807, 13030, 16939, 23614, 33878, 59035, 84695, 118070, 153491, 169390, 306982, 767455, 1534910, 15384521, 30769042, 76922605, 153845210, 199998773, 399997546, 999993865, 1999987730]

約数ペア:

[(1, 1999987730), (2, 999993865), (5, 399997546), (10, 199998773), (13, 153845210), (26, 76922605), (65, 30769042), (130, 15384521), (1303, 1534910), (2606, 767455), (6515, 306982), (11807, 169390), (13030, 153491), (16939, 118070), (23614, 84695), (33878, 59035)]