80756480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9013}}^1$

素因数の和:9041

約数の個数: 72

約数和(自身を含む): 221095392

約数和(自身を除く): 140338912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 9013, 18026, 36052, 45065, 63091, 72104, 90130, 126182, 144208, 180260, 252364, 288416, 315455, 360520, 504728, 576832, 630910, 721040, 1009456, 1153664, 1261820, 1442080, 2018912, 2307328, 2523640, 2884160, 4037824, 5047280, 5768320, 8075648, 10094560, 11536640, 16151296, 20189120, 40378240, 80756480]

約数ペア:

[(1, 80756480), (2, 40378240), (4, 20189120), (5, 16151296), (7, 11536640), (8, 10094560), (10, 8075648), (14, 5768320), (16, 5047280), (20, 4037824), (28, 2884160), (32, 2523640), (35, 2307328), (40, 2018912), (56, 1442080), (64, 1261820), (70, 1153664), (80, 1009456), (112, 721040), (128, 630910), (140, 576832), (160, 504728), (224, 360520), (256, 315455), (280, 288416), (320, 252364), (448, 180260), (560, 144208), (640, 126182), (896, 90130), (1120, 72104), (1280, 63091), (1792, 45065), (2240, 36052), (4480, 18026), (8960, 9013)]