99940480

素因数分解:

$2^7\times 5^1\times {\mathrm{156157}}^1$

素因数の和:156176

約数の個数: 32

約数和(自身を含む): 238921740

約数和(自身を除く): 138981260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 156157, 312314, 624628, 780785, 1249256, 1561570, 2498512, 3123140, 4997024, 6246280, 9994048, 12492560, 19988096, 24985120, 49970240, 99940480]

約数ペア:

[(1, 99940480), (2, 49970240), (4, 24985120), (5, 19988096), (8, 12492560), (10, 9994048), (16, 6246280), (20, 4997024), (32, 3123140), (40, 2498512), (64, 1561570), (80, 1249256), (128, 780785), (160, 624628), (320, 312314), (640, 156157)]