855017860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{27109}}^1$

素因数の和:27220

約数の個数: 48

約数和(自身を含む): 1912881600

約数和(自身を除く): 1057863740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 830, 1577, 1660, 3154, 6308, 7885, 15770, 27109, 31540, 54218, 108436, 135545, 271090, 515071, 542180, 1030142, 2060284, 2250047, 2575355, 4500094, 5150710, 9000188, 10301420, 11250235, 22500470, 42750893, 45000940, 85501786, 171003572, 213754465, 427508930, 855017860]

約数ペア:

[(1, 855017860), (2, 427508930), (4, 213754465), (5, 171003572), (10, 85501786), (19, 45000940), (20, 42750893), (38, 22500470), (76, 11250235), (83, 10301420), (95, 9000188), (166, 5150710), (190, 4500094), (332, 2575355), (380, 2250047), (415, 2060284), (830, 1030142), (1577, 542180), (1660, 515071), (3154, 271090), (6308, 135545), (7885, 108436), (15770, 54218), (27109, 31540)]