258720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1$

素因数の和:43

約数の個数: 144

約数和(自身を含む): 1034208

約数和(自身を除く): 775488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 49, 55, 56, 60, 66, 70, 77, 80, 84, 88, 96, 98, 105, 110, 112, 120, 132, 140, 147, 154, 160, 165, 168, 176, 196, 210, 220, 224, 231, 240, 245, 264, 280, 294, 308, 330, 336, 352, 385, 392, 420, 440, 462, 480, 490, 528, 539, 560, 588, 616, 660, 672, 735, 770, 784, 840, 880, 924, 980, 1056, 1078, 1120, 1155, 1176, 1232, 1320, 1470, 1540, 1568, 1617, 1680, 1760, 1848, 1960, 2156, 2310, 2352, 2464, 2640, 2695, 2940, 3080, 3234, 3360, 3696, 3920, 4312, 4620, 4704, 5280, 5390, 5880, 6160, 6468, 7392, 7840, 8085, 8624, 9240, 10780, 11760, 12320, 12936, 16170, 17248, 18480, 21560, 23520, 25872, 32340, 36960, 43120, 51744, 64680, 86240, 129360, 258720]

約数ペア:

[(1, 258720), (2, 129360), (3, 86240), (4, 64680), (5, 51744), (6, 43120), (7, 36960), (8, 32340), (10, 25872), (11, 23520), (12, 21560), (14, 18480), (15, 17248), (16, 16170), (20, 12936), (21, 12320), (22, 11760), (24, 10780), (28, 9240), (30, 8624), (32, 8085), (33, 7840), (35, 7392), (40, 6468), (42, 6160), (44, 5880), (48, 5390), (49, 5280), (55, 4704), (56, 4620), (60, 4312), (66, 3920), (70, 3696), (77, 3360), (80, 3234), (84, 3080), (88, 2940), (96, 2695), (98, 2640), (105, 2464), (110, 2352), (112, 2310), (120, 2156), (132, 1960), (140, 1848), (147, 1760), (154, 1680), (160, 1617), (165, 1568), (168, 1540), (176, 1470), (196, 1320), (210, 1232), (220, 1176), (224, 1155), (231, 1120), (240, 1078), (245, 1056), (264, 980), (280, 924), (294, 880), (308, 840), (330, 784), (336, 770), (352, 735), (385, 672), (392, 660), (420, 616), (440, 588), (462, 560), (480, 539), (490, 528)]