667077380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1\times {\mathrm{1069}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 1438259760

約数和(自身を除く): 771182380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 761, 820, 1069, 1522, 2138, 3044, 3805, 4276, 5345, 7610, 10690, 15220, 21380, 31201, 43829, 62402, 87658, 124804, 156005, 175316, 219145, 312010, 438290, 624020, 813509, 876580, 1627018, 3254036, 4067545, 8135090, 16270180, 33353869, 66707738, 133415476, 166769345, 333538690, 667077380]

約数ペア:

[(1, 667077380), (2, 333538690), (4, 166769345), (5, 133415476), (10, 66707738), (20, 33353869), (41, 16270180), (82, 8135090), (164, 4067545), (205, 3254036), (410, 1627018), (761, 876580), (820, 813509), (1069, 624020), (1522, 438290), (2138, 312010), (3044, 219145), (3805, 175316), (4276, 156005), (5345, 124804), (7610, 87658), (10690, 62402), (15220, 43829), (21380, 31201)]