197783740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{128431}}^1$

素因数の和:128458

約数の個数: 48

約数和(自身を含む): 517837824

約数和(自身を除く): 320054084

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 128431, 256862, 513724, 642155, 899017, 1284310, 1412741, 1798034, 2568620, 2825482, 3596068, 4495085, 5650964, 7063705, 8990170, 9889187, 14127410, 17980340, 19778374, 28254820, 39556748, 49445935, 98891870, 197783740]

約数ペア:

[(1, 197783740), (2, 98891870), (4, 49445935), (5, 39556748), (7, 28254820), (10, 19778374), (11, 17980340), (14, 14127410), (20, 9889187), (22, 8990170), (28, 7063705), (35, 5650964), (44, 4495085), (55, 3596068), (70, 2825482), (77, 2568620), (110, 1798034), (140, 1412741), (154, 1284310), (220, 899017), (308, 642155), (385, 513724), (770, 256862), (1540, 128431)]