247145220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{4003}}^1$

素因数の和:4039

約数の個数: 144

約数和(自身を含む): 874473600

約数和(自身を除く): 627328380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2205, 2940, 3087, 3430, 4003, 4116, 4410, 5145, 6174, 6860, 8006, 8820, 10290, 12009, 12348, 15435, 16012, 20015, 20580, 24018, 28021, 30870, 36027, 40030, 48036, 56042, 60045, 61740, 72054, 80060, 84063, 112084, 120090, 140105, 144108, 168126, 180135, 196147, 240180, 252189, 280210, 336252, 360270, 392294, 420315, 504378, 560420, 588441, 720540, 784588, 840630, 980735, 1008756, 1176882, 1260945, 1373029, 1681260, 1765323, 1961470, 2353764, 2521890, 2746058, 2942205, 3530646, 3922940, 4119087, 5043780, 5492116, 5884410, 6865145, 7061292, 8238174, 8826615, 11768820, 12357261, 13730290, 16476348, 17653230, 20595435, 24714522, 27460580, 35306460, 41190870, 49429044, 61786305, 82381740, 123572610, 247145220]

約数ペア:

[(1, 247145220), (2, 123572610), (3, 82381740), (4, 61786305), (5, 49429044), (6, 41190870), (7, 35306460), (9, 27460580), (10, 24714522), (12, 20595435), (14, 17653230), (15, 16476348), (18, 13730290), (20, 12357261), (21, 11768820), (28, 8826615), (30, 8238174), (35, 7061292), (36, 6865145), (42, 5884410), (45, 5492116), (49, 5043780), (60, 4119087), (63, 3922940), (70, 3530646), (84, 2942205), (90, 2746058), (98, 2521890), (105, 2353764), (126, 1961470), (140, 1765323), (147, 1681260), (180, 1373029), (196, 1260945), (210, 1176882), (245, 1008756), (252, 980735), (294, 840630), (315, 784588), (343, 720540), (420, 588441), (441, 560420), (490, 504378), (588, 420315), (630, 392294), (686, 360270), (735, 336252), (882, 280210), (980, 252189), (1029, 240180), (1260, 196147), (1372, 180135), (1470, 168126), (1715, 144108), (1764, 140105), (2058, 120090), (2205, 112084), (2940, 84063), (3087, 80060), (3430, 72054), (4003, 61740), (4116, 60045), (4410, 56042), (5145, 48036), (6174, 40030), (6860, 36027), (8006, 30870), (8820, 28021), (10290, 24018), (12009, 20580), (12348, 20015), (15435, 16012)]