18956800

素因数分解:

$2^9\times 5^2\times {\mathrm{1481}}^1$

素因数の和:1509

約数の個数: 60

約数和(自身を含む): 46998666

約数和(自身を除く): 28041866

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1481, 1600, 2560, 2962, 3200, 5924, 6400, 7405, 11848, 12800, 14810, 23696, 29620, 37025, 47392, 59240, 74050, 94784, 118480, 148100, 189568, 236960, 296200, 379136, 473920, 592400, 758272, 947840, 1184800, 1895680, 2369600, 3791360, 4739200, 9478400, 18956800]

約数ペア:

[(1, 18956800), (2, 9478400), (4, 4739200), (5, 3791360), (8, 2369600), (10, 1895680), (16, 1184800), (20, 947840), (25, 758272), (32, 592400), (40, 473920), (50, 379136), (64, 296200), (80, 236960), (100, 189568), (128, 148100), (160, 118480), (200, 94784), (256, 74050), (320, 59240), (400, 47392), (512, 37025), (640, 29620), (800, 23696), (1280, 14810), (1481, 12800), (1600, 11848), (2560, 7405), (2962, 6400), (3200, 5924)]