247120720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{521}}^1$

素因数の和:570

約数の個数: 180

約数和(自身を含む): 736054452

約数和(自身を除く): 488933732

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 176, 196, 220, 242, 245, 280, 308, 385, 392, 440, 484, 490, 521, 539, 560, 605, 616, 770, 784, 847, 880, 968, 980, 1042, 1078, 1210, 1232, 1540, 1694, 1936, 1960, 2084, 2156, 2420, 2605, 2695, 3080, 3388, 3647, 3920, 4168, 4235, 4312, 4840, 5210, 5390, 5731, 5929, 6160, 6776, 7294, 8336, 8470, 8624, 9680, 10420, 10780, 11462, 11858, 13552, 14588, 16940, 18235, 20840, 21560, 22924, 23716, 25529, 28655, 29176, 29645, 33880, 36470, 40117, 41680, 43120, 45848, 47432, 51058, 57310, 58352, 59290, 63041, 67760, 72940, 80234, 91696, 94864, 102116, 114620, 118580, 126082, 127645, 145880, 160468, 200585, 204232, 229240, 237160, 252164, 255290, 280819, 291760, 315205, 320936, 401170, 408464, 441287, 458480, 474320, 504328, 510580, 561638, 630410, 641872, 802340, 882574, 1008656, 1021160, 1123276, 1260820, 1404095, 1604680, 1765148, 2042320, 2206435, 2246552, 2521640, 2808190, 3089009, 3209360, 3530296, 4412870, 4493104, 5043280, 5616380, 6178018, 7060592, 8825740, 11232760, 12356036, 15445045, 17651480, 22465520, 24712072, 30890090, 35302960, 49424144, 61780180, 123560360, 247120720]

約数ペア:

[(1, 247120720), (2, 123560360), (4, 61780180), (5, 49424144), (7, 35302960), (8, 30890090), (10, 24712072), (11, 22465520), (14, 17651480), (16, 15445045), (20, 12356036), (22, 11232760), (28, 8825740), (35, 7060592), (40, 6178018), (44, 5616380), (49, 5043280), (55, 4493104), (56, 4412870), (70, 3530296), (77, 3209360), (80, 3089009), (88, 2808190), (98, 2521640), (110, 2246552), (112, 2206435), (121, 2042320), (140, 1765148), (154, 1604680), (176, 1404095), (196, 1260820), (220, 1123276), (242, 1021160), (245, 1008656), (280, 882574), (308, 802340), (385, 641872), (392, 630410), (440, 561638), (484, 510580), (490, 504328), (521, 474320), (539, 458480), (560, 441287), (605, 408464), (616, 401170), (770, 320936), (784, 315205), (847, 291760), (880, 280819), (968, 255290), (980, 252164), (1042, 237160), (1078, 229240), (1210, 204232), (1232, 200585), (1540, 160468), (1694, 145880), (1936, 127645), (1960, 126082), (2084, 118580), (2156, 114620), (2420, 102116), (2605, 94864), (2695, 91696), (3080, 80234), (3388, 72940), (3647, 67760), (3920, 63041), (4168, 59290), (4235, 58352), (4312, 57310), (4840, 51058), (5210, 47432), (5390, 45848), (5731, 43120), (5929, 41680), (6160, 40117), (6776, 36470), (7294, 33880), (8336, 29645), (8470, 29176), (8624, 28655), (9680, 25529), (10420, 23716), (10780, 22924), (11462, 21560), (11858, 20840), (13552, 18235), (14588, 16940)]