61990360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{37799}}^1$

素因数の和:37851

約数の個数: 32

約数和(自身を含む): 142884000

約数和(自身を除く): 80893640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 37799, 75598, 151196, 188995, 302392, 377990, 755980, 1511960, 1549759, 3099518, 6199036, 7748795, 12398072, 15497590, 30995180, 61990360]

約数ペア:

[(1, 61990360), (2, 30995180), (4, 15497590), (5, 12398072), (8, 7748795), (10, 6199036), (20, 3099518), (40, 1549759), (41, 1511960), (82, 755980), (164, 377990), (205, 302392), (328, 188995), (410, 151196), (820, 75598), (1640, 37799)]