398840960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:854

約数の個数: 128

約数和(自身を含む): 1099837440

約数和(自身を除く): 700996480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 254, 280, 320, 448, 508, 560, 635, 640, 701, 889, 896, 1016, 1120, 1270, 1402, 1778, 2032, 2240, 2540, 2804, 3505, 3556, 4064, 4445, 4480, 4907, 5080, 5608, 7010, 7112, 8128, 8890, 9814, 10160, 11216, 14020, 14224, 16256, 17780, 19628, 20320, 22432, 24535, 28040, 28448, 35560, 39256, 40640, 44864, 49070, 56080, 56896, 71120, 78512, 81280, 89027, 89728, 98140, 112160, 113792, 142240, 157024, 178054, 196280, 224320, 284480, 314048, 356108, 392560, 445135, 448640, 568960, 623189, 628096, 712216, 785120, 890270, 1246378, 1424432, 1570240, 1780540, 2492756, 2848864, 3115945, 3140480, 3561080, 4985512, 5697728, 6231890, 7122160, 9971024, 11395456, 12463780, 14244320, 19942048, 24927560, 28488640, 39884096, 49855120, 56977280, 79768192, 99710240, 199420480, 398840960]

約数ペア:

[(1, 398840960), (2, 199420480), (4, 99710240), (5, 79768192), (7, 56977280), (8, 49855120), (10, 39884096), (14, 28488640), (16, 24927560), (20, 19942048), (28, 14244320), (32, 12463780), (35, 11395456), (40, 9971024), (56, 7122160), (64, 6231890), (70, 5697728), (80, 4985512), (112, 3561080), (127, 3140480), (128, 3115945), (140, 2848864), (160, 2492756), (224, 1780540), (254, 1570240), (280, 1424432), (320, 1246378), (448, 890270), (508, 785120), (560, 712216), (635, 628096), (640, 623189), (701, 568960), (889, 448640), (896, 445135), (1016, 392560), (1120, 356108), (1270, 314048), (1402, 284480), (1778, 224320), (2032, 196280), (2240, 178054), (2540, 157024), (2804, 142240), (3505, 113792), (3556, 112160), (4064, 98140), (4445, 89728), (4480, 89027), (4907, 81280), (5080, 78512), (5608, 71120), (7010, 56896), (7112, 56080), (8128, 49070), (8890, 44864), (9814, 40640), (10160, 39256), (11216, 35560), (14020, 28448), (14224, 28040), (16256, 24535), (17780, 22432), (19628, 20320)]