254983260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{86729}}^1$

素因数の和:86755

約数の個数: 72

約数和(自身を含む): 830526480

約数和(自身を除く): 575543220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 86729, 173458, 260187, 346916, 433645, 520374, 607103, 867290, 1040748, 1214206, 1300935, 1734580, 1821309, 2428412, 2601870, 3035515, 3642618, 4249721, 5203740, 6071030, 7285236, 8499442, 9106545, 12142060, 12749163, 16998884, 18213090, 21248605, 25498326, 36426180, 42497210, 50996652, 63745815, 84994420, 127491630, 254983260]

約数ペア:

[(1, 254983260), (2, 127491630), (3, 84994420), (4, 63745815), (5, 50996652), (6, 42497210), (7, 36426180), (10, 25498326), (12, 21248605), (14, 18213090), (15, 16998884), (20, 12749163), (21, 12142060), (28, 9106545), (30, 8499442), (35, 7285236), (42, 6071030), (49, 5203740), (60, 4249721), (70, 3642618), (84, 3035515), (98, 2601870), (105, 2428412), (140, 1821309), (147, 1734580), (196, 1300935), (210, 1214206), (245, 1040748), (294, 867290), (420, 607103), (490, 520374), (588, 433645), (735, 346916), (980, 260187), (1470, 173458), (2940, 86729)]