65728000

素因数分解:

$2^9\times 5^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 178738560

約数和(自身を除く): 113010560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 79, 80, 100, 104, 125, 128, 130, 158, 160, 200, 208, 250, 256, 260, 316, 320, 325, 395, 400, 416, 500, 512, 520, 632, 640, 650, 790, 800, 832, 1000, 1027, 1040, 1264, 1280, 1300, 1580, 1600, 1625, 1664, 1975, 2000, 2054, 2080, 2528, 2560, 2600, 3160, 3200, 3250, 3328, 3950, 4000, 4108, 4160, 5056, 5135, 5200, 6320, 6400, 6500, 6656, 7900, 8000, 8216, 8320, 9875, 10112, 10270, 10400, 12640, 12800, 13000, 15800, 16000, 16432, 16640, 19750, 20224, 20540, 20800, 25280, 25675, 26000, 31600, 32000, 32864, 33280, 39500, 40448, 41080, 41600, 50560, 51350, 52000, 63200, 64000, 65728, 79000, 82160, 83200, 101120, 102700, 104000, 126400, 128375, 131456, 158000, 164320, 166400, 202240, 205400, 208000, 252800, 256750, 262912, 316000, 328640, 410800, 416000, 505600, 513500, 525824, 632000, 657280, 821600, 832000, 1011200, 1027000, 1264000, 1314560, 1643200, 2054000, 2528000, 2629120, 3286400, 4108000, 5056000, 6572800, 8216000, 13145600, 16432000, 32864000, 65728000]

約数ペア:

[(1, 65728000), (2, 32864000), (4, 16432000), (5, 13145600), (8, 8216000), (10, 6572800), (13, 5056000), (16, 4108000), (20, 3286400), (25, 2629120), (26, 2528000), (32, 2054000), (40, 1643200), (50, 1314560), (52, 1264000), (64, 1027000), (65, 1011200), (79, 832000), (80, 821600), (100, 657280), (104, 632000), (125, 525824), (128, 513500), (130, 505600), (158, 416000), (160, 410800), (200, 328640), (208, 316000), (250, 262912), (256, 256750), (260, 252800), (316, 208000), (320, 205400), (325, 202240), (395, 166400), (400, 164320), (416, 158000), (500, 131456), (512, 128375), (520, 126400), (632, 104000), (640, 102700), (650, 101120), (790, 83200), (800, 82160), (832, 79000), (1000, 65728), (1027, 64000), (1040, 63200), (1264, 52000), (1280, 51350), (1300, 50560), (1580, 41600), (1600, 41080), (1625, 40448), (1664, 39500), (1975, 33280), (2000, 32864), (2054, 32000), (2080, 31600), (2528, 26000), (2560, 25675), (2600, 25280), (3160, 20800), (3200, 20540), (3250, 20224), (3328, 19750), (3950, 16640), (4000, 16432), (4108, 16000), (4160, 15800), (5056, 13000), (5135, 12800), (5200, 12640), (6320, 10400), (6400, 10270), (6500, 10112), (6656, 9875), (7900, 8320), (8000, 8216)]