21669200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 60888960

約数和(自身を除く): 39219760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 109, 112, 140, 142, 175, 200, 218, 280, 284, 350, 355, 400, 436, 497, 545, 560, 568, 700, 710, 763, 872, 994, 1090, 1136, 1400, 1420, 1526, 1744, 1775, 1988, 2180, 2485, 2725, 2800, 2840, 3052, 3550, 3815, 3976, 4360, 4970, 5450, 5680, 6104, 7100, 7630, 7739, 7952, 8720, 9940, 10900, 12208, 12425, 14200, 15260, 15478, 19075, 19880, 21800, 24850, 28400, 30520, 30956, 38150, 38695, 39760, 43600, 49700, 54173, 61040, 61912, 76300, 77390, 99400, 108346, 123824, 152600, 154780, 193475, 198800, 216692, 270865, 305200, 309560, 386950, 433384, 541730, 619120, 773900, 866768, 1083460, 1354325, 1547800, 2166920, 2708650, 3095600, 4333840, 5417300, 10834600, 21669200]

約数ペア:

[(1, 21669200), (2, 10834600), (4, 5417300), (5, 4333840), (7, 3095600), (8, 2708650), (10, 2166920), (14, 1547800), (16, 1354325), (20, 1083460), (25, 866768), (28, 773900), (35, 619120), (40, 541730), (50, 433384), (56, 386950), (70, 309560), (71, 305200), (80, 270865), (100, 216692), (109, 198800), (112, 193475), (140, 154780), (142, 152600), (175, 123824), (200, 108346), (218, 99400), (280, 77390), (284, 76300), (350, 61912), (355, 61040), (400, 54173), (436, 49700), (497, 43600), (545, 39760), (560, 38695), (568, 38150), (700, 30956), (710, 30520), (763, 28400), (872, 24850), (994, 21800), (1090, 19880), (1136, 19075), (1400, 15478), (1420, 15260), (1526, 14200), (1744, 12425), (1775, 12208), (1988, 10900), (2180, 9940), (2485, 8720), (2725, 7952), (2800, 7739), (2840, 7630), (3052, 7100), (3550, 6104), (3815, 5680), (3976, 5450), (4360, 4970)]