219965440

素因数分解:

$2^{11}\times 5^1\times {\mathrm{21481}}^1$

素因数の和:21508

約数の個数: 48

約数和(自身を含む): 527812740

約数和(自身を除く): 307847300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 21481, 42962, 85924, 107405, 171848, 214810, 343696, 429620, 687392, 859240, 1374784, 1718480, 2749568, 3436960, 5499136, 6873920, 10998272, 13747840, 21996544, 27495680, 43993088, 54991360, 109982720, 219965440]

約数ペア:

[(1, 219965440), (2, 109982720), (4, 54991360), (5, 43993088), (8, 27495680), (10, 21996544), (16, 13747840), (20, 10998272), (32, 6873920), (40, 5499136), (64, 3436960), (80, 2749568), (128, 1718480), (160, 1374784), (256, 859240), (320, 687392), (512, 429620), (640, 343696), (1024, 214810), (1280, 171848), (2048, 107405), (2560, 85924), (5120, 42962), (10240, 21481)]