79816960

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 193084416

約数和(自身を除く): 113267456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 491, 508, 635, 640, 982, 1016, 1270, 1280, 1964, 2032, 2455, 2540, 3928, 4064, 4910, 5080, 7856, 8128, 9820, 10160, 15712, 16256, 19640, 20320, 31424, 32512, 39280, 40640, 62357, 62848, 78560, 81280, 124714, 125696, 157120, 162560, 249428, 311785, 314240, 498856, 623570, 628480, 997712, 1247140, 1995424, 2494280, 3990848, 4988560, 7981696, 9977120, 15963392, 19954240, 39908480, 79816960]

約数ペア:

[(1, 79816960), (2, 39908480), (4, 19954240), (5, 15963392), (8, 9977120), (10, 7981696), (16, 4988560), (20, 3990848), (32, 2494280), (40, 1995424), (64, 1247140), (80, 997712), (127, 628480), (128, 623570), (160, 498856), (254, 314240), (256, 311785), (320, 249428), (491, 162560), (508, 157120), (635, 125696), (640, 124714), (982, 81280), (1016, 78560), (1270, 62848), (1280, 62357), (1964, 40640), (2032, 39280), (2455, 32512), (2540, 31424), (3928, 20320), (4064, 19640), (4910, 16256), (5080, 15712), (7856, 10160), (8128, 9820)]