20879360

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2039}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 50122800

約数和(自身を除く): 29243440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2039, 2048, 2560, 4078, 5120, 8156, 10195, 10240, 16312, 20390, 32624, 40780, 65248, 81560, 130496, 163120, 260992, 326240, 521984, 652480, 1043968, 1304960, 2087936, 2609920, 4175872, 5219840, 10439680, 20879360]

約数ペア:

[(1, 20879360), (2, 10439680), (4, 5219840), (5, 4175872), (8, 2609920), (10, 2087936), (16, 1304960), (20, 1043968), (32, 652480), (40, 521984), (64, 326240), (80, 260992), (128, 163120), (160, 130496), (256, 81560), (320, 65248), (512, 40780), (640, 32624), (1024, 20390), (1280, 16312), (2039, 10240), (2048, 10195), (2560, 8156), (4078, 5120)]