21301268500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^2\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:539

約数の個数: 144

約数和(自身を含む): 48621867840

約数和(自身を除く): 27320599340

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 179, 250, 283, 290, 358, 500, 566, 580, 716, 725, 841, 895, 1132, 1415, 1450, 1682, 1790, 2830, 2900, 3364, 3580, 3625, 4205, 4475, 5191, 5660, 7075, 7250, 8207, 8410, 8950, 10382, 14150, 14500, 16414, 16820, 17900, 20764, 21025, 22375, 25955, 28300, 32828, 35375, 41035, 42050, 44750, 50657, 51910, 70750, 82070, 84100, 89500, 101314, 103820, 105125, 129775, 141500, 150539, 164140, 202628, 205175, 210250, 238003, 253285, 259550, 301078, 410350, 420500, 476006, 506570, 519100, 602156, 648875, 752695, 820700, 952012, 1013140, 1025875, 1190015, 1266425, 1297750, 1469053, 1505390, 2051750, 2380030, 2532850, 2595500, 2938106, 3010780, 3763475, 4103500, 4760060, 5065700, 5876212, 5950075, 6332125, 7345265, 7526950, 11900150, 12664250, 14690530, 15053900, 18817375, 23800300, 25328500, 29381060, 29750375, 36726325, 37634750, 42602537, 59500750, 73452650, 75269500, 85205074, 119001500, 146905300, 170410148, 183631625, 213012685, 367263250, 426025370, 734526500, 852050740, 1065063425, 2130126850, 4260253700, 5325317125, 10650634250, 21301268500]

約数ペア:

[(1, 21301268500), (2, 10650634250), (4, 5325317125), (5, 4260253700), (10, 2130126850), (20, 1065063425), (25, 852050740), (29, 734526500), (50, 426025370), (58, 367263250), (100, 213012685), (116, 183631625), (125, 170410148), (145, 146905300), (179, 119001500), (250, 85205074), (283, 75269500), (290, 73452650), (358, 59500750), (500, 42602537), (566, 37634750), (580, 36726325), (716, 29750375), (725, 29381060), (841, 25328500), (895, 23800300), (1132, 18817375), (1415, 15053900), (1450, 14690530), (1682, 12664250), (1790, 11900150), (2830, 7526950), (2900, 7345265), (3364, 6332125), (3580, 5950075), (3625, 5876212), (4205, 5065700), (4475, 4760060), (5191, 4103500), (5660, 3763475), (7075, 3010780), (7250, 2938106), (8207, 2595500), (8410, 2532850), (8950, 2380030), (10382, 2051750), (14150, 1505390), (14500, 1469053), (16414, 1297750), (16820, 1266425), (17900, 1190015), (20764, 1025875), (21025, 1013140), (22375, 952012), (25955, 820700), (28300, 752695), (32828, 648875), (35375, 602156), (41035, 519100), (42050, 506570), (44750, 476006), (50657, 420500), (51910, 410350), (70750, 301078), (82070, 259550), (84100, 253285), (89500, 238003), (101314, 210250), (103820, 205175), (105125, 202628), (129775, 164140), (141500, 150539)]