12915680

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 30890160

約数和(自身を除く): 17974480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 907, 1424, 1780, 1814, 2848, 3560, 3628, 4535, 7120, 7256, 9070, 14240, 14512, 18140, 29024, 36280, 72560, 80723, 145120, 161446, 322892, 403615, 645784, 807230, 1291568, 1614460, 2583136, 3228920, 6457840, 12915680]

約数ペア:

[(1, 12915680), (2, 6457840), (4, 3228920), (5, 2583136), (8, 1614460), (10, 1291568), (16, 807230), (20, 645784), (32, 403615), (40, 322892), (80, 161446), (89, 145120), (160, 80723), (178, 72560), (356, 36280), (445, 29024), (712, 18140), (890, 14512), (907, 14240), (1424, 9070), (1780, 7256), (1814, 7120), (2848, 4535), (3560, 3628)]