686967820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:524

約数の個数: 144

約数和(自身を含む): 1833995520

約数和(自身を除く): 1147027700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 107, 110, 121, 140, 154, 214, 220, 242, 308, 379, 385, 428, 484, 535, 605, 749, 758, 770, 847, 1070, 1177, 1210, 1498, 1516, 1540, 1694, 1895, 2140, 2354, 2420, 2653, 2996, 3388, 3745, 3790, 4169, 4235, 4708, 5306, 5885, 7490, 7580, 8239, 8338, 8470, 10612, 11770, 12947, 13265, 14980, 16478, 16676, 16940, 20845, 23540, 25894, 26530, 29183, 32956, 40553, 41195, 41690, 45859, 51788, 53060, 58366, 64735, 81106, 82390, 83380, 90629, 91718, 116732, 129470, 145915, 162212, 164780, 181258, 183436, 202765, 229295, 258940, 283871, 291830, 321013, 362516, 405530, 446083, 453145, 458590, 567742, 583660, 642026, 811060, 892166, 906290, 917180, 1135484, 1284052, 1419355, 1605065, 1784332, 1812580, 2230415, 2838710, 3122581, 3210130, 4460830, 4906913, 5677420, 6245162, 6420260, 8921660, 9813826, 12490324, 15612905, 19627652, 24534565, 31225810, 34348391, 49069130, 62451620, 68696782, 98138260, 137393564, 171741955, 343483910, 686967820]

約数ペア:

[(1, 686967820), (2, 343483910), (4, 171741955), (5, 137393564), (7, 98138260), (10, 68696782), (11, 62451620), (14, 49069130), (20, 34348391), (22, 31225810), (28, 24534565), (35, 19627652), (44, 15612905), (55, 12490324), (70, 9813826), (77, 8921660), (107, 6420260), (110, 6245162), (121, 5677420), (140, 4906913), (154, 4460830), (214, 3210130), (220, 3122581), (242, 2838710), (308, 2230415), (379, 1812580), (385, 1784332), (428, 1605065), (484, 1419355), (535, 1284052), (605, 1135484), (749, 917180), (758, 906290), (770, 892166), (847, 811060), (1070, 642026), (1177, 583660), (1210, 567742), (1498, 458590), (1516, 453145), (1540, 446083), (1694, 405530), (1895, 362516), (2140, 321013), (2354, 291830), (2420, 283871), (2653, 258940), (2996, 229295), (3388, 202765), (3745, 183436), (3790, 181258), (4169, 164780), (4235, 162212), (4708, 145915), (5306, 129470), (5885, 116732), (7490, 91718), (7580, 90629), (8239, 83380), (8338, 82390), (8470, 81106), (10612, 64735), (11770, 58366), (12947, 53060), (13265, 51788), (14980, 45859), (16478, 41690), (16676, 41195), (16940, 40553), (20845, 32956), (23540, 29183), (25894, 26530)]