80204800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:284

約数の個数: 132

約数和(自身を含む): 214992316

約数和(自身を除く): 134787516

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, 241, 256, 260, 320, 325, 400, 416, 482, 512, 520, 640, 650, 800, 832, 964, 1024, 1040, 1205, 1280, 1300, 1600, 1664, 1928, 2080, 2410, 2560, 2600, 3133, 3200, 3328, 3856, 4160, 4820, 5120, 5200, 6025, 6266, 6400, 6656, 7712, 8320, 9640, 10400, 12050, 12532, 12800, 13312, 15424, 15665, 16640, 19280, 20800, 24100, 25064, 25600, 30848, 31330, 33280, 38560, 41600, 48200, 50128, 61696, 62660, 66560, 77120, 78325, 83200, 96400, 100256, 123392, 125320, 154240, 156650, 166400, 192800, 200512, 246784, 250640, 308480, 313300, 332800, 385600, 401024, 501280, 616960, 626600, 771200, 802048, 1002560, 1233920, 1253200, 1542400, 1604096, 2005120, 2506400, 3084800, 3208192, 4010240, 5012800, 6169600, 8020480, 10025600, 16040960, 20051200, 40102400, 80204800]

約数ペア:

[(1, 80204800), (2, 40102400), (4, 20051200), (5, 16040960), (8, 10025600), (10, 8020480), (13, 6169600), (16, 5012800), (20, 4010240), (25, 3208192), (26, 3084800), (32, 2506400), (40, 2005120), (50, 1604096), (52, 1542400), (64, 1253200), (65, 1233920), (80, 1002560), (100, 802048), (104, 771200), (128, 626600), (130, 616960), (160, 501280), (200, 401024), (208, 385600), (241, 332800), (256, 313300), (260, 308480), (320, 250640), (325, 246784), (400, 200512), (416, 192800), (482, 166400), (512, 156650), (520, 154240), (640, 125320), (650, 123392), (800, 100256), (832, 96400), (964, 83200), (1024, 78325), (1040, 77120), (1205, 66560), (1280, 62660), (1300, 61696), (1600, 50128), (1664, 48200), (1928, 41600), (2080, 38560), (2410, 33280), (2560, 31330), (2600, 30848), (3133, 25600), (3200, 25064), (3328, 24100), (3856, 20800), (4160, 19280), (4820, 16640), (5120, 15665), (5200, 15424), (6025, 13312), (6266, 12800), (6400, 12532), (6656, 12050), (7712, 10400), (8320, 9640)]