2007990404

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{3407}}^1$

素因数の和:3553

約数の個数: 72

約数和(自身を含む): 4264307712

約数和(自身を除く): 2256317308

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 97, 98, 124, 194, 196, 217, 388, 434, 679, 868, 1358, 1519, 2716, 3007, 3038, 3407, 4753, 6014, 6076, 6814, 9506, 12028, 13628, 19012, 21049, 23849, 42098, 47698, 84196, 95396, 105617, 147343, 166943, 211234, 294686, 330479, 333886, 422468, 589372, 660958, 667772, 739319, 1321916, 1478638, 2313353, 2957276, 4626706, 5175233, 9253412, 10244849, 10350466, 16193471, 20489698, 20700932, 32386942, 40979396, 64773884, 71713943, 143427886, 286855772, 501997601, 1003995202, 2007990404]

約数ペア:

[(1, 2007990404), (2, 1003995202), (4, 501997601), (7, 286855772), (14, 143427886), (28, 71713943), (31, 64773884), (49, 40979396), (62, 32386942), (97, 20700932), (98, 20489698), (124, 16193471), (194, 10350466), (196, 10244849), (217, 9253412), (388, 5175233), (434, 4626706), (679, 2957276), (868, 2313353), (1358, 1478638), (1519, 1321916), (2716, 739319), (3007, 667772), (3038, 660958), (3407, 589372), (4753, 422468), (6014, 333886), (6076, 330479), (6814, 294686), (9506, 211234), (12028, 166943), (13628, 147343), (19012, 105617), (21049, 95396), (23849, 84196), (42098, 47698)]