21326800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 120

約数和(自身を含む): 57844512

約数和(自身を除く): 36517712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 37, 40, 44, 50, 55, 74, 80, 88, 100, 110, 131, 148, 176, 185, 200, 220, 262, 275, 296, 370, 400, 407, 440, 524, 550, 592, 655, 740, 814, 880, 925, 1048, 1100, 1310, 1441, 1480, 1628, 1850, 2035, 2096, 2200, 2620, 2882, 2960, 3256, 3275, 3700, 4070, 4400, 4847, 5240, 5764, 6512, 6550, 7205, 7400, 8140, 9694, 10175, 10480, 11528, 13100, 14410, 14800, 16280, 19388, 20350, 23056, 24235, 26200, 28820, 32560, 36025, 38776, 40700, 48470, 52400, 53317, 57640, 72050, 77552, 81400, 96940, 106634, 115280, 121175, 144100, 162800, 193880, 213268, 242350, 266585, 288200, 387760, 426536, 484700, 533170, 576400, 853072, 969400, 1066340, 1332925, 1938800, 2132680, 2665850, 4265360, 5331700, 10663400, 21326800]

約数ペア:

[(1, 21326800), (2, 10663400), (4, 5331700), (5, 4265360), (8, 2665850), (10, 2132680), (11, 1938800), (16, 1332925), (20, 1066340), (22, 969400), (25, 853072), (37, 576400), (40, 533170), (44, 484700), (50, 426536), (55, 387760), (74, 288200), (80, 266585), (88, 242350), (100, 213268), (110, 193880), (131, 162800), (148, 144100), (176, 121175), (185, 115280), (200, 106634), (220, 96940), (262, 81400), (275, 77552), (296, 72050), (370, 57640), (400, 53317), (407, 52400), (440, 48470), (524, 40700), (550, 38776), (592, 36025), (655, 32560), (740, 28820), (814, 26200), (880, 24235), (925, 23056), (1048, 20350), (1100, 19388), (1310, 16280), (1441, 14800), (1480, 14410), (1628, 13100), (1850, 11528), (2035, 10480), (2096, 10175), (2200, 9694), (2620, 8140), (2882, 7400), (2960, 7205), (3256, 6550), (3275, 6512), (3700, 5764), (4070, 5240), (4400, 4847)]