20291796

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 120

約数和(自身を含む): 63423360

約数和(自身を除く): 43131564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 81, 84, 92, 108, 126, 138, 161, 162, 189, 207, 252, 276, 322, 324, 378, 389, 414, 483, 567, 621, 644, 756, 778, 828, 966, 1134, 1167, 1242, 1449, 1556, 1863, 1932, 2268, 2334, 2484, 2723, 2898, 3501, 3726, 4347, 4668, 5446, 5796, 7002, 7452, 8169, 8694, 8947, 10503, 10892, 13041, 14004, 16338, 17388, 17894, 21006, 24507, 26082, 26841, 31509, 32676, 35788, 42012, 49014, 52164, 53682, 62629, 63018, 73521, 80523, 98028, 107364, 125258, 126036, 147042, 161046, 187887, 220563, 241569, 250516, 294084, 322092, 375774, 441126, 483138, 563661, 724707, 751548, 882252, 966276, 1127322, 1449414, 1690983, 2254644, 2898828, 3381966, 5072949, 6763932, 10145898, 20291796]

約数ペア:

[(1, 20291796), (2, 10145898), (3, 6763932), (4, 5072949), (6, 3381966), (7, 2898828), (9, 2254644), (12, 1690983), (14, 1449414), (18, 1127322), (21, 966276), (23, 882252), (27, 751548), (28, 724707), (36, 563661), (42, 483138), (46, 441126), (54, 375774), (63, 322092), (69, 294084), (81, 250516), (84, 241569), (92, 220563), (108, 187887), (126, 161046), (138, 147042), (161, 126036), (162, 125258), (189, 107364), (207, 98028), (252, 80523), (276, 73521), (322, 63018), (324, 62629), (378, 53682), (389, 52164), (414, 49014), (483, 42012), (567, 35788), (621, 32676), (644, 31509), (756, 26841), (778, 26082), (828, 24507), (966, 21006), (1134, 17894), (1167, 17388), (1242, 16338), (1449, 14004), (1556, 13041), (1863, 10892), (1932, 10503), (2268, 8947), (2334, 8694), (2484, 8169), (2723, 7452), (2898, 7002), (3501, 5796), (3726, 5446), (4347, 4668)]