122218640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{80407}}^1$

素因数の和:80439

約数の個数: 40

約数和(自身を含む): 299117760

約数和(自身を除く): 176899120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 80407, 160814, 321628, 402035, 643256, 804070, 1286512, 1527733, 1608140, 3055466, 3216280, 6110932, 6432560, 7638665, 12221864, 15277330, 24443728, 30554660, 61109320, 122218640]

約数ペア:

[(1, 122218640), (2, 61109320), (4, 30554660), (5, 24443728), (8, 15277330), (10, 12221864), (16, 7638665), (19, 6432560), (20, 6110932), (38, 3216280), (40, 3055466), (76, 1608140), (80, 1527733), (95, 1286512), (152, 804070), (190, 643256), (304, 402035), (380, 321628), (760, 160814), (1520, 80407)]