1640952920

素因数分解:

$2^3\times 5^1\times {\mathrm{3643}}^1\times {\mathrm{11261}}^1$

素因数の和:14915

約数の個数: 32

約数和(自身を含む): 3693485520

約数和(自身を除く): 2052532600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3643, 7286, 11261, 14572, 18215, 22522, 29144, 36430, 45044, 56305, 72860, 90088, 112610, 145720, 225220, 450440, 41023823, 82047646, 164095292, 205119115, 328190584, 410238230, 820476460, 1640952920]

約数ペア:

[(1, 1640952920), (2, 820476460), (4, 410238230), (5, 328190584), (8, 205119115), (10, 164095292), (20, 82047646), (40, 41023823), (3643, 450440), (7286, 225220), (11261, 145720), (14572, 112610), (18215, 90088), (22522, 72860), (29144, 56305), (36430, 45044)]