280085988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{256489}}^1$

素因数の和:256516

約数の個数: 48

約数和(自身を含む): 804352640

約数和(自身を除く): 524266652

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 256489, 512978, 769467, 1025956, 1538934, 1795423, 3077868, 3334357, 3590846, 5386269, 6668714, 7181692, 10003071, 10772538, 13337428, 20006142, 21545076, 23340499, 40012284, 46680998, 70021497, 93361996, 140042994, 280085988]

約数ペア:

[(1, 280085988), (2, 140042994), (3, 93361996), (4, 70021497), (6, 46680998), (7, 40012284), (12, 23340499), (13, 21545076), (14, 20006142), (21, 13337428), (26, 10772538), (28, 10003071), (39, 7181692), (42, 6668714), (52, 5386269), (78, 3590846), (84, 3334357), (91, 3077868), (156, 1795423), (182, 1538934), (273, 1025956), (364, 769467), (546, 512978), (1092, 256489)]