19963090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 42254784

約数和(自身を除く): 22291694

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 131, 245, 262, 311, 490, 622, 655, 917, 1310, 1555, 1834, 2177, 3110, 4354, 4585, 6419, 9170, 10885, 12838, 15239, 21770, 30478, 32095, 40741, 64190, 76195, 81482, 152390, 203705, 285187, 407410, 570374, 1425935, 1996309, 2851870, 3992618, 9981545, 19963090]

約数ペア:

[(1, 19963090), (2, 9981545), (5, 3992618), (7, 2851870), (10, 1996309), (14, 1425935), (35, 570374), (49, 407410), (70, 285187), (98, 203705), (131, 152390), (245, 81482), (262, 76195), (311, 64190), (490, 40741), (622, 32095), (655, 30478), (917, 21770), (1310, 15239), (1555, 12838), (1834, 10885), (2177, 9170), (3110, 6419), (4354, 4585)]