257910660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1913}}^1$

素因数の和:2042

約数の個数: 144

約数和(自身を含む): 902918016

約数和(自身を除く): 645007356

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 107, 126, 140, 180, 210, 214, 252, 315, 321, 420, 428, 535, 630, 642, 749, 963, 1070, 1260, 1284, 1498, 1605, 1913, 1926, 2140, 2247, 2996, 3210, 3745, 3826, 3852, 4494, 4815, 5739, 6420, 6741, 7490, 7652, 8988, 9565, 9630, 11235, 11478, 13391, 13482, 14980, 17217, 19130, 19260, 22470, 22956, 26782, 26964, 28695, 33705, 34434, 38260, 40173, 44940, 53564, 57390, 66955, 67410, 68868, 80346, 86085, 114780, 120519, 133910, 134820, 160692, 172170, 200865, 204691, 241038, 267820, 344340, 401730, 409382, 482076, 602595, 614073, 803460, 818764, 1023455, 1205190, 1228146, 1432837, 1842219, 2046910, 2410380, 2456292, 2865674, 3070365, 3684438, 4093820, 4298511, 5731348, 6140730, 7164185, 7368876, 8597022, 9211095, 12281460, 12895533, 14328370, 17194044, 18422190, 21492555, 25791066, 28656740, 36844380, 42985110, 51582132, 64477665, 85970220, 128955330, 257910660]

約数ペア:

[(1, 257910660), (2, 128955330), (3, 85970220), (4, 64477665), (5, 51582132), (6, 42985110), (7, 36844380), (9, 28656740), (10, 25791066), (12, 21492555), (14, 18422190), (15, 17194044), (18, 14328370), (20, 12895533), (21, 12281460), (28, 9211095), (30, 8597022), (35, 7368876), (36, 7164185), (42, 6140730), (45, 5731348), (60, 4298511), (63, 4093820), (70, 3684438), (84, 3070365), (90, 2865674), (105, 2456292), (107, 2410380), (126, 2046910), (140, 1842219), (180, 1432837), (210, 1228146), (214, 1205190), (252, 1023455), (315, 818764), (321, 803460), (420, 614073), (428, 602595), (535, 482076), (630, 409382), (642, 401730), (749, 344340), (963, 267820), (1070, 241038), (1260, 204691), (1284, 200865), (1498, 172170), (1605, 160692), (1913, 134820), (1926, 133910), (2140, 120519), (2247, 114780), (2996, 86085), (3210, 80346), (3745, 68868), (3826, 67410), (3852, 66955), (4494, 57390), (4815, 53564), (5739, 44940), (6420, 40173), (6741, 38260), (7490, 34434), (7652, 33705), (8988, 28695), (9565, 26964), (9630, 26782), (11235, 22956), (11478, 22470), (13391, 19260), (13482, 19130), (14980, 17217)]