128196560

素因数分解:

$2^4\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1933}}^1$

素因数の和:2775

約数の個数: 40

約数和(自身を含む): 298570920

約数和(自身を除く): 170374360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 1658, 1933, 3316, 3866, 4145, 6632, 7732, 8290, 9665, 13264, 15464, 16580, 19330, 30928, 33160, 38660, 66320, 77320, 154640, 1602457, 3204914, 6409828, 8012285, 12819656, 16024570, 25639312, 32049140, 64098280, 128196560]

約数ペア:

[(1, 128196560), (2, 64098280), (4, 32049140), (5, 25639312), (8, 16024570), (10, 12819656), (16, 8012285), (20, 6409828), (40, 3204914), (80, 1602457), (829, 154640), (1658, 77320), (1933, 66320), (3316, 38660), (3866, 33160), (4145, 30928), (6632, 19330), (7732, 16580), (8290, 15464), (9665, 13264)]