20790403928

素因数分解:

$2^3\times 7^1\times {\mathrm{331}}^1\times {\mathrm{773}}^1\times {\mathrm{1451}}^1$

素因数の和:2568

約数の個数: 64

約数和(自身を含む): 44774104320

約数和(自身を除く): 23983700392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 331, 662, 773, 1324, 1451, 1546, 2317, 2648, 2902, 3092, 4634, 5411, 5804, 6184, 9268, 10157, 10822, 11608, 18536, 20314, 21644, 40628, 43288, 81256, 255863, 480281, 511726, 960562, 1023452, 1121623, 1791041, 1921124, 2046904, 2243246, 3361967, 3582082, 3842248, 4486492, 6723934, 7164164, 7851361, 8972984, 13447868, 14328328, 15702722, 26895736, 31405444, 62810888, 371257213, 742514426, 1485028852, 2598800491, 2970057704, 5197600982, 10395201964, 20790403928]

約数ペア:

[(1, 20790403928), (2, 10395201964), (4, 5197600982), (7, 2970057704), (8, 2598800491), (14, 1485028852), (28, 742514426), (56, 371257213), (331, 62810888), (662, 31405444), (773, 26895736), (1324, 15702722), (1451, 14328328), (1546, 13447868), (2317, 8972984), (2648, 7851361), (2902, 7164164), (3092, 6723934), (4634, 4486492), (5411, 3842248), (5804, 3582082), (6184, 3361967), (9268, 2243246), (10157, 2046904), (10822, 1921124), (11608, 1791041), (18536, 1121623), (20314, 1023452), (21644, 960562), (40628, 511726), (43288, 480281), (81256, 255863)]