1279782400

素因数分解:

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

素因数の和:7732

約数の個数: 120

約数和(自身を含む): 3415109544

約数和(自身を除く): 2135327144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 650, 800, 832, 1040, 1280, 1300, 1600, 1664, 2080, 2560, 2600, 3200, 3328, 4160, 5200, 6400, 6656, 7691, 8320, 10400, 12800, 15382, 16640, 20800, 30764, 33280, 38455, 41600, 61528, 76910, 83200, 99983, 123056, 153820, 166400, 192275, 199966, 246112, 307640, 384550, 399932, 492224, 499915, 615280, 769100, 799864, 984448, 999830, 1230560, 1538200, 1599728, 1968896, 1999660, 2461120, 2499575, 3076400, 3199456, 3937792, 3999320, 4922240, 4999150, 6152800, 6398912, 7998640, 9844480, 9998300, 12305600, 12797824, 15997280, 19688960, 19996600, 24611200, 25595648, 31994560, 39993200, 49222400, 51191296, 63989120, 79986400, 98444800, 127978240, 159972800, 255956480, 319945600, 639891200, 1279782400]

約数ペア:

[(1, 1279782400), (2, 639891200), (4, 319945600), (5, 255956480), (8, 159972800), (10, 127978240), (13, 98444800), (16, 79986400), (20, 63989120), (25, 51191296), (26, 49222400), (32, 39993200), (40, 31994560), (50, 25595648), (52, 24611200), (64, 19996600), (65, 19688960), (80, 15997280), (100, 12797824), (104, 12305600), (128, 9998300), (130, 9844480), (160, 7998640), (200, 6398912), (208, 6152800), (256, 4999150), (260, 4922240), (320, 3999320), (325, 3937792), (400, 3199456), (416, 3076400), (512, 2499575), (520, 2461120), (640, 1999660), (650, 1968896), (800, 1599728), (832, 1538200), (1040, 1230560), (1280, 999830), (1300, 984448), (1600, 799864), (1664, 769100), (2080, 615280), (2560, 499915), (2600, 492224), (3200, 399932), (3328, 384550), (4160, 307640), (5200, 246112), (6400, 199966), (6656, 192275), (7691, 166400), (8320, 153820), (10400, 123056), (12800, 99983), (15382, 83200), (16640, 76910), (20800, 61528), (30764, 41600), (33280, 38455)]