255956480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7691}}^1$

素因数の和:7727

約数の個数: 80

約数和(自身を含む): 660988944

約数和(自身を除く): 405032464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1664, 2080, 2560, 3328, 4160, 6656, 7691, 8320, 15382, 16640, 30764, 33280, 38455, 61528, 76910, 99983, 123056, 153820, 199966, 246112, 307640, 399932, 492224, 499915, 615280, 799864, 984448, 999830, 1230560, 1599728, 1968896, 1999660, 2461120, 3199456, 3937792, 3999320, 4922240, 6398912, 7998640, 9844480, 12797824, 15997280, 19688960, 25595648, 31994560, 51191296, 63989120, 127978240, 255956480]

約数ペア:

[(1, 255956480), (2, 127978240), (4, 63989120), (5, 51191296), (8, 31994560), (10, 25595648), (13, 19688960), (16, 15997280), (20, 12797824), (26, 9844480), (32, 7998640), (40, 6398912), (52, 4922240), (64, 3999320), (65, 3937792), (80, 3199456), (104, 2461120), (128, 1999660), (130, 1968896), (160, 1599728), (208, 1230560), (256, 999830), (260, 984448), (320, 799864), (416, 615280), (512, 499915), (520, 492224), (640, 399932), (832, 307640), (1040, 246112), (1280, 199966), (1664, 153820), (2080, 123056), (2560, 99983), (3328, 76910), (4160, 61528), (6656, 38455), (7691, 33280), (8320, 30764), (15382, 16640)]