86990680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{44383}}^1$

素因数の和:44408

約数の個数: 48

約数和(自身を含む): 227689920

約数和(自身を除く): 140699240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 44383, 88766, 177532, 221915, 310681, 355064, 443830, 621362, 887660, 1242724, 1553405, 1775320, 2174767, 2485448, 3106810, 4349534, 6213620, 8699068, 10873835, 12427240, 17398136, 21747670, 43495340, 86990680]

約数ペア:

[(1, 86990680), (2, 43495340), (4, 21747670), (5, 17398136), (7, 12427240), (8, 10873835), (10, 8699068), (14, 6213620), (20, 4349534), (28, 3106810), (35, 2485448), (40, 2174767), (49, 1775320), (56, 1553405), (70, 1242724), (98, 887660), (140, 621362), (196, 443830), (245, 355064), (280, 310681), (392, 221915), (490, 177532), (980, 88766), (1960, 44383)]