78910720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{8807}}^1$

素因数の和:8835

約数の個数: 72

約数和(自身を含む): 216042624

約数和(自身を除く): 137131904

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, 8807, 8960, 17614, 35228, 44035, 61649, 70456, 88070, 123298, 140912, 176140, 246596, 281824, 308245, 352280, 493192, 563648, 616490, 704560, 986384, 1127296, 1232980, 1409120, 1972768, 2254592, 2465960, 2818240, 3945536, 4931920, 5636480, 7891072, 9863840, 11272960, 15782144, 19727680, 39455360, 78910720]

約数ペア:

[(1, 78910720), (2, 39455360), (4, 19727680), (5, 15782144), (7, 11272960), (8, 9863840), (10, 7891072), (14, 5636480), (16, 4931920), (20, 3945536), (28, 2818240), (32, 2465960), (35, 2254592), (40, 1972768), (56, 1409120), (64, 1232980), (70, 1127296), (80, 986384), (112, 704560), (128, 616490), (140, 563648), (160, 493192), (224, 352280), (256, 308245), (280, 281824), (320, 246596), (448, 176140), (560, 140912), (640, 123298), (896, 88070), (1120, 70456), (1280, 61649), (1792, 44035), (2240, 35228), (4480, 17614), (8807, 8960)]