21248000

素因数分解:

$2^{11}\times 5^3\times {\mathrm{83}}^1$

素因数の和:120

約数の個数: 96

約数和(自身を含む): 53660880

約数和(自身を除く): 32412880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 83, 100, 125, 128, 160, 166, 200, 250, 256, 320, 332, 400, 415, 500, 512, 640, 664, 800, 830, 1000, 1024, 1280, 1328, 1600, 1660, 2000, 2048, 2075, 2560, 2656, 3200, 3320, 4000, 4150, 5120, 5312, 6400, 6640, 8000, 8300, 10240, 10375, 10624, 12800, 13280, 16000, 16600, 20750, 21248, 25600, 26560, 32000, 33200, 41500, 42496, 51200, 53120, 64000, 66400, 83000, 84992, 106240, 128000, 132800, 166000, 169984, 212480, 256000, 265600, 332000, 424960, 531200, 664000, 849920, 1062400, 1328000, 2124800, 2656000, 4249600, 5312000, 10624000, 21248000]

約数ペア:

[(1, 21248000), (2, 10624000), (4, 5312000), (5, 4249600), (8, 2656000), (10, 2124800), (16, 1328000), (20, 1062400), (25, 849920), (32, 664000), (40, 531200), (50, 424960), (64, 332000), (80, 265600), (83, 256000), (100, 212480), (125, 169984), (128, 166000), (160, 132800), (166, 128000), (200, 106240), (250, 84992), (256, 83000), (320, 66400), (332, 64000), (400, 53120), (415, 51200), (500, 42496), (512, 41500), (640, 33200), (664, 32000), (800, 26560), (830, 25600), (1000, 21248), (1024, 20750), (1280, 16600), (1328, 16000), (1600, 13280), (1660, 12800), (2000, 10624), (2048, 10375), (2075, 10240), (2560, 8300), (2656, 8000), (3200, 6640), (3320, 6400), (4000, 5312), (4150, 5120)]