81910400

素因数分解:

$2^7\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1$

素因数の和:227

約数の個数: 192

約数和(自身を含む): 239047200

約数和(自身を除く): 157136800

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 32, 40, 44, 50, 52, 55, 64, 65, 80, 88, 100, 104, 110, 128, 130, 143, 160, 176, 179, 200, 208, 220, 260, 275, 286, 320, 325, 352, 358, 400, 416, 440, 520, 550, 572, 640, 650, 704, 715, 716, 800, 832, 880, 895, 1040, 1100, 1144, 1300, 1408, 1430, 1432, 1600, 1664, 1760, 1790, 1969, 2080, 2200, 2288, 2327, 2600, 2860, 2864, 3200, 3520, 3575, 3580, 3938, 4160, 4400, 4475, 4576, 4654, 5200, 5720, 5728, 7040, 7150, 7160, 7876, 8320, 8800, 8950, 9152, 9308, 9845, 10400, 11440, 11456, 11635, 14300, 14320, 15752, 17600, 17900, 18304, 18616, 19690, 20800, 22880, 22912, 23270, 25597, 28600, 28640, 31504, 35200, 35800, 37232, 39380, 41600, 45760, 46540, 49225, 51194, 57200, 57280, 58175, 63008, 71600, 74464, 78760, 91520, 93080, 98450, 102388, 114400, 114560, 116350, 126016, 127985, 143200, 148928, 157520, 186160, 196900, 204776, 228800, 232700, 252032, 255970, 286400, 297856, 315040, 372320, 393800, 409552, 457600, 465400, 511940, 572800, 630080, 639925, 744640, 787600, 819104, 930800, 1023880, 1260160, 1279850, 1489280, 1575200, 1638208, 1861600, 2047760, 2559700, 3150400, 3276416, 3723200, 4095520, 5119400, 6300800, 7446400, 8191040, 10238800, 16382080, 20477600, 40955200, 81910400]

約数ペア:

[(1, 81910400), (2, 40955200), (4, 20477600), (5, 16382080), (8, 10238800), (10, 8191040), (11, 7446400), (13, 6300800), (16, 5119400), (20, 4095520), (22, 3723200), (25, 3276416), (26, 3150400), (32, 2559700), (40, 2047760), (44, 1861600), (50, 1638208), (52, 1575200), (55, 1489280), (64, 1279850), (65, 1260160), (80, 1023880), (88, 930800), (100, 819104), (104, 787600), (110, 744640), (128, 639925), (130, 630080), (143, 572800), (160, 511940), (176, 465400), (179, 457600), (200, 409552), (208, 393800), (220, 372320), (260, 315040), (275, 297856), (286, 286400), (320, 255970), (325, 252032), (352, 232700), (358, 228800), (400, 204776), (416, 196900), (440, 186160), (520, 157520), (550, 148928), (572, 143200), (640, 127985), (650, 126016), (704, 116350), (715, 114560), (716, 114400), (800, 102388), (832, 98450), (880, 93080), (895, 91520), (1040, 78760), (1100, 74464), (1144, 71600), (1300, 63008), (1408, 58175), (1430, 57280), (1432, 57200), (1600, 51194), (1664, 49225), (1760, 46540), (1790, 45760), (1969, 41600), (2080, 39380), (2200, 37232), (2288, 35800), (2327, 35200), (2600, 31504), (2860, 28640), (2864, 28600), (3200, 25597), (3520, 23270), (3575, 22912), (3580, 22880), (3938, 20800), (4160, 19690), (4400, 18616), (4475, 18304), (4576, 17900), (4654, 17600), (5200, 15752), (5720, 14320), (5728, 14300), (7040, 11635), (7150, 11456), (7160, 11440), (7876, 10400), (8320, 9845), (8800, 9308), (8950, 9152)]