1221557260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2411}}^1$

素因数の和:2492

約数の個数: 144

約数和(自身を含む): 3326012928

約数和(自身を除く): 2104455668

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 47, 49, 55, 70, 77, 94, 98, 110, 140, 154, 188, 196, 220, 235, 245, 308, 329, 385, 470, 490, 517, 539, 658, 770, 940, 980, 1034, 1078, 1316, 1540, 1645, 2068, 2156, 2303, 2411, 2585, 2695, 3290, 3619, 4606, 4822, 5170, 5390, 6580, 7238, 9212, 9644, 10340, 10780, 11515, 12055, 14476, 16877, 18095, 23030, 24110, 25333, 26521, 33754, 36190, 46060, 48220, 50666, 53042, 67508, 72380, 84385, 101332, 106084, 113317, 118139, 126665, 132605, 168770, 185647, 226634, 236278, 253330, 265210, 337540, 371294, 453268, 472556, 506660, 530420, 566585, 590695, 742588, 793219, 928235, 1133170, 1181390, 1246487, 1299529, 1586438, 1856470, 2266340, 2362780, 2492974, 2599058, 3172876, 3712940, 3966095, 4985948, 5198116, 5552533, 6232435, 6497645, 7932190, 8725409, 11105066, 12464870, 12995290, 15864380, 17450818, 22210132, 24929740, 25990580, 27762665, 34901636, 43627045, 55525330, 61077863, 87254090, 111050660, 122155726, 174508180, 244311452, 305389315, 610778630, 1221557260]

約数ペア:

[(1, 1221557260), (2, 610778630), (4, 305389315), (5, 244311452), (7, 174508180), (10, 122155726), (11, 111050660), (14, 87254090), (20, 61077863), (22, 55525330), (28, 43627045), (35, 34901636), (44, 27762665), (47, 25990580), (49, 24929740), (55, 22210132), (70, 17450818), (77, 15864380), (94, 12995290), (98, 12464870), (110, 11105066), (140, 8725409), (154, 7932190), (188, 6497645), (196, 6232435), (220, 5552533), (235, 5198116), (245, 4985948), (308, 3966095), (329, 3712940), (385, 3172876), (470, 2599058), (490, 2492974), (517, 2362780), (539, 2266340), (658, 1856470), (770, 1586438), (940, 1299529), (980, 1246487), (1034, 1181390), (1078, 1133170), (1316, 928235), (1540, 793219), (1645, 742588), (2068, 590695), (2156, 566585), (2303, 530420), (2411, 506660), (2585, 472556), (2695, 453268), (3290, 371294), (3619, 337540), (4606, 265210), (4822, 253330), (5170, 236278), (5390, 226634), (6580, 185647), (7238, 168770), (9212, 132605), (9644, 126665), (10340, 118139), (10780, 113317), (11515, 106084), (12055, 101332), (14476, 84385), (16877, 72380), (18095, 67508), (23030, 53042), (24110, 50666), (25333, 48220), (26521, 46060), (33754, 36190)]