806540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{823}}^1$

素因数の和:846

約数の個数: 36

約数和(自身を含む): 1972656

約数和(自身を除く): 1166116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 823, 980, 1646, 3292, 4115, 5761, 8230, 11522, 16460, 23044, 28805, 40327, 57610, 80654, 115220, 161308, 201635, 403270, 806540]

約数ペア:

[(1, 806540), (2, 403270), (4, 201635), (5, 161308), (7, 115220), (10, 80654), (14, 57610), (20, 40327), (28, 28805), (35, 23044), (49, 16460), (70, 11522), (98, 8230), (140, 5761), (196, 4115), (245, 3292), (490, 1646), (823, 980)]