12905680

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{457}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 30156552

約数和(自身を除く): 17250872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 457, 706, 914, 1412, 1765, 1828, 2285, 2824, 3530, 3656, 4570, 5648, 7060, 7312, 9140, 14120, 18280, 28240, 36560, 161321, 322642, 645284, 806605, 1290568, 1613210, 2581136, 3226420, 6452840, 12905680]

約数ペア:

[(1, 12905680), (2, 6452840), (4, 3226420), (5, 2581136), (8, 1613210), (10, 1290568), (16, 806605), (20, 645284), (40, 322642), (80, 161321), (353, 36560), (457, 28240), (706, 18280), (914, 14120), (1412, 9140), (1765, 7312), (1828, 7060), (2285, 5648), (2824, 4570), (3530, 3656)]