77828180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1879}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 173712000

約数和(自身を除く): 95883820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 1879, 2071, 2180, 3758, 4142, 7516, 8284, 9395, 10355, 18790, 20710, 35701, 37580, 41420, 71402, 142804, 178505, 204811, 357010, 409622, 714020, 819244, 1024055, 2048110, 3891409, 4096220, 7782818, 15565636, 19457045, 38914090, 77828180]

約数ペア:

[(1, 77828180), (2, 38914090), (4, 19457045), (5, 15565636), (10, 7782818), (19, 4096220), (20, 3891409), (38, 2048110), (76, 1024055), (95, 819244), (109, 714020), (190, 409622), (218, 357010), (380, 204811), (436, 178505), (545, 142804), (1090, 71402), (1879, 41420), (2071, 37580), (2180, 35701), (3758, 20710), (4142, 18790), (7516, 10355), (8284, 9395)]