256506540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251477}}^1$

素因数の和:251506

約数の個数: 48

約数和(自身を含む): 760469472

約数和(自身を除く): 503962932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 251477, 502954, 754431, 1005908, 1257385, 1508862, 2514770, 3017724, 3772155, 4275109, 5029540, 7544310, 8550218, 12825327, 15088620, 17100436, 21375545, 25650654, 42751090, 51301308, 64126635, 85502180, 128253270, 256506540]

約数ペア:

[(1, 256506540), (2, 128253270), (3, 85502180), (4, 64126635), (5, 51301308), (6, 42751090), (10, 25650654), (12, 21375545), (15, 17100436), (17, 15088620), (20, 12825327), (30, 8550218), (34, 7544310), (51, 5029540), (60, 4275109), (68, 3772155), (85, 3017724), (102, 2514770), (170, 1508862), (204, 1257385), (255, 1005908), (340, 754431), (510, 502954), (1020, 251477)]