16787980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 38810016

約数和(自身を除く): 22022036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 557, 685, 1114, 1370, 1507, 2228, 2740, 2785, 3014, 5570, 6028, 6127, 7535, 11140, 12254, 15070, 24508, 30140, 30635, 61270, 76309, 122540, 152618, 305236, 381545, 763090, 839399, 1526180, 1678798, 3357596, 4196995, 8393990, 16787980]

約数ペア:

[(1, 16787980), (2, 8393990), (4, 4196995), (5, 3357596), (10, 1678798), (11, 1526180), (20, 839399), (22, 763090), (44, 381545), (55, 305236), (110, 152618), (137, 122540), (220, 76309), (274, 61270), (548, 30635), (557, 30140), (685, 24508), (1114, 15070), (1370, 12254), (1507, 11140), (2228, 7535), (2740, 6127), (2785, 6028), (3014, 5570)]