20815968

素因数分解:

$2^5\times 3^1\times {\mathrm{29}}^1\times {\mathrm{7477}}^1$

素因数の和:7519

約数の個数: 48

約数和(自身を含む): 56533680

約数和(自身を除く): 35717712

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 58, 87, 96, 116, 174, 232, 348, 464, 696, 928, 1392, 2784, 7477, 14954, 22431, 29908, 44862, 59816, 89724, 119632, 179448, 216833, 239264, 358896, 433666, 650499, 717792, 867332, 1300998, 1734664, 2601996, 3469328, 5203992, 6938656, 10407984, 20815968]

約数ペア:

[(1, 20815968), (2, 10407984), (3, 6938656), (4, 5203992), (6, 3469328), (8, 2601996), (12, 1734664), (16, 1300998), (24, 867332), (29, 717792), (32, 650499), (48, 433666), (58, 358896), (87, 239264), (96, 216833), (116, 179448), (174, 119632), (232, 89724), (348, 59816), (464, 44862), (696, 29908), (928, 22431), (1392, 14954), (2784, 7477)]