19718400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:121

約数の個数: 216

約数和(自身を含む): 70967680

約数和(自身を除く): 51249280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 79, 80, 96, 100, 104, 120, 128, 130, 150, 156, 158, 160, 192, 195, 200, 208, 237, 240, 256, 260, 300, 312, 316, 320, 325, 384, 390, 395, 400, 416, 474, 480, 520, 600, 624, 632, 640, 650, 768, 780, 790, 800, 832, 948, 960, 975, 1027, 1040, 1185, 1200, 1248, 1264, 1280, 1300, 1560, 1580, 1600, 1664, 1896, 1920, 1950, 1975, 2054, 2080, 2370, 2400, 2496, 2528, 2600, 3081, 3120, 3160, 3200, 3328, 3792, 3840, 3900, 3950, 4108, 4160, 4740, 4800, 4992, 5056, 5135, 5200, 5925, 6162, 6240, 6320, 6400, 7584, 7800, 7900, 8216, 8320, 9480, 9600, 9984, 10112, 10270, 10400, 11850, 12324, 12480, 12640, 15168, 15405, 15600, 15800, 16432, 16640, 18960, 19200, 20224, 20540, 20800, 23700, 24648, 24960, 25280, 25675, 30336, 30810, 31200, 31600, 32864, 37920, 41080, 41600, 47400, 49296, 49920, 50560, 51350, 60672, 61620, 62400, 63200, 65728, 75840, 77025, 82160, 83200, 94800, 98592, 101120, 102700, 123240, 124800, 126400, 131456, 151680, 154050, 164320, 189600, 197184, 205400, 246480, 249600, 252800, 262912, 303360, 308100, 328640, 379200, 394368, 410800, 492960, 505600, 616200, 657280, 758400, 788736, 821600, 985920, 1232400, 1314560, 1516800, 1643200, 1971840, 2464800, 3286400, 3943680, 4929600, 6572800, 9859200, 19718400]

約数ペア:

[(1, 19718400), (2, 9859200), (3, 6572800), (4, 4929600), (5, 3943680), (6, 3286400), (8, 2464800), (10, 1971840), (12, 1643200), (13, 1516800), (15, 1314560), (16, 1232400), (20, 985920), (24, 821600), (25, 788736), (26, 758400), (30, 657280), (32, 616200), (39, 505600), (40, 492960), (48, 410800), (50, 394368), (52, 379200), (60, 328640), (64, 308100), (65, 303360), (75, 262912), (78, 252800), (79, 249600), (80, 246480), (96, 205400), (100, 197184), (104, 189600), (120, 164320), (128, 154050), (130, 151680), (150, 131456), (156, 126400), (158, 124800), (160, 123240), (192, 102700), (195, 101120), (200, 98592), (208, 94800), (237, 83200), (240, 82160), (256, 77025), (260, 75840), (300, 65728), (312, 63200), (316, 62400), (320, 61620), (325, 60672), (384, 51350), (390, 50560), (395, 49920), (400, 49296), (416, 47400), (474, 41600), (480, 41080), (520, 37920), (600, 32864), (624, 31600), (632, 31200), (640, 30810), (650, 30336), (768, 25675), (780, 25280), (790, 24960), (800, 24648), (832, 23700), (948, 20800), (960, 20540), (975, 20224), (1027, 19200), (1040, 18960), (1185, 16640), (1200, 16432), (1248, 15800), (1264, 15600), (1280, 15405), (1300, 15168), (1560, 12640), (1580, 12480), (1600, 12324), (1664, 11850), (1896, 10400), (1920, 10270), (1950, 10112), (1975, 9984), (2054, 9600), (2080, 9480), (2370, 8320), (2400, 8216), (2496, 7900), (2528, 7800), (2600, 7584), (3081, 6400), (3120, 6320), (3160, 6240), (3200, 6162), (3328, 5925), (3792, 5200), (3840, 5135), (3900, 5056), (3950, 4992), (4108, 4800), (4160, 4740)]