81790968

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1109}}^1$

素因数の和:1564

約数の個数: 64

約数和(自身を含む): 234432000

約数和(自身を除く): 152641032

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 439, 878, 1109, 1317, 1756, 2218, 2634, 3073, 3327, 3512, 4436, 5268, 6146, 6654, 7763, 8872, 9219, 10536, 12292, 13308, 15526, 18438, 23289, 24584, 26616, 31052, 36876, 46578, 62104, 73752, 93156, 186312, 486851, 973702, 1460553, 1947404, 2921106, 3407957, 3894808, 5842212, 6815914, 10223871, 11684424, 13631828, 20447742, 27263656, 40895484, 81790968]

約数ペア:

[(1, 81790968), (2, 40895484), (3, 27263656), (4, 20447742), (6, 13631828), (7, 11684424), (8, 10223871), (12, 6815914), (14, 5842212), (21, 3894808), (24, 3407957), (28, 2921106), (42, 1947404), (56, 1460553), (84, 973702), (168, 486851), (439, 186312), (878, 93156), (1109, 73752), (1317, 62104), (1756, 46578), (2218, 36876), (2634, 31052), (3073, 26616), (3327, 24584), (3512, 23289), (4436, 18438), (5268, 15526), (6146, 13308), (6654, 12292), (7763, 10536), (8872, 9219)]