18970880

素因数分解:

$2^8\times 5^1\times {\mathrm{14821}}^1$

素因数の和:14842

約数の個数: 36

約数和(自身を含む): 45444252

約数和(自身を除く): 26473372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 14821, 29642, 59284, 74105, 118568, 148210, 237136, 296420, 474272, 592840, 948544, 1185680, 1897088, 2371360, 3794176, 4742720, 9485440, 18970880]

約数ペア:

[(1, 18970880), (2, 9485440), (4, 4742720), (5, 3794176), (8, 2371360), (10, 1897088), (16, 1185680), (20, 948544), (32, 592840), (40, 474272), (64, 296420), (80, 237136), (128, 148210), (160, 118568), (256, 74105), (320, 59284), (640, 29642), (1280, 14821)]