78878800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 240

約数和(自身を含む): 255733632

約数和(自身を除く): 176854832

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 50, 52, 55, 56, 65, 70, 77, 80, 88, 91, 100, 104, 110, 112, 130, 140, 143, 154, 175, 176, 182, 197, 200, 208, 220, 260, 275, 280, 286, 308, 325, 350, 364, 385, 394, 400, 440, 455, 520, 550, 560, 572, 616, 650, 700, 715, 728, 770, 788, 880, 910, 985, 1001, 1040, 1100, 1144, 1232, 1300, 1379, 1400, 1430, 1456, 1540, 1576, 1820, 1925, 1970, 2002, 2167, 2200, 2275, 2288, 2561, 2600, 2758, 2800, 2860, 3080, 3152, 3575, 3640, 3850, 3940, 4004, 4334, 4400, 4550, 4925, 5005, 5122, 5200, 5516, 5720, 6160, 6895, 7150, 7280, 7700, 7880, 8008, 8668, 9100, 9850, 10010, 10244, 10835, 11032, 11440, 12805, 13790, 14300, 15169, 15400, 15760, 16016, 17336, 17927, 18200, 19700, 20020, 20488, 21670, 22064, 25025, 25610, 27580, 28171, 28600, 30338, 30800, 34475, 34672, 35854, 36400, 39400, 40040, 40976, 43340, 50050, 51220, 54175, 55160, 56342, 57200, 60676, 64025, 68950, 71708, 75845, 78800, 80080, 86680, 89635, 100100, 102440, 108350, 110320, 112684, 121352, 128050, 137900, 140855, 143416, 151690, 173360, 179270, 197197, 200200, 204880, 216700, 225368, 242704, 256100, 275800, 281710, 286832, 303380, 358540, 379225, 394394, 400400, 433400, 448175, 450736, 512200, 551600, 563420, 606760, 704275, 717080, 758450, 788788, 866800, 896350, 985985, 1024400, 1126840, 1213520, 1408550, 1434160, 1516900, 1577576, 1792700, 1971970, 2253680, 2817100, 3033800, 3155152, 3585400, 3943940, 4929925, 5634200, 6067600, 7170800, 7887880, 9859850, 11268400, 15775760, 19719700, 39439400, 78878800]

約数ペア:

[(1, 78878800), (2, 39439400), (4, 19719700), (5, 15775760), (7, 11268400), (8, 9859850), (10, 7887880), (11, 7170800), (13, 6067600), (14, 5634200), (16, 4929925), (20, 3943940), (22, 3585400), (25, 3155152), (26, 3033800), (28, 2817100), (35, 2253680), (40, 1971970), (44, 1792700), (50, 1577576), (52, 1516900), (55, 1434160), (56, 1408550), (65, 1213520), (70, 1126840), (77, 1024400), (80, 985985), (88, 896350), (91, 866800), (100, 788788), (104, 758450), (110, 717080), (112, 704275), (130, 606760), (140, 563420), (143, 551600), (154, 512200), (175, 450736), (176, 448175), (182, 433400), (197, 400400), (200, 394394), (208, 379225), (220, 358540), (260, 303380), (275, 286832), (280, 281710), (286, 275800), (308, 256100), (325, 242704), (350, 225368), (364, 216700), (385, 204880), (394, 200200), (400, 197197), (440, 179270), (455, 173360), (520, 151690), (550, 143416), (560, 140855), (572, 137900), (616, 128050), (650, 121352), (700, 112684), (715, 110320), (728, 108350), (770, 102440), (788, 100100), (880, 89635), (910, 86680), (985, 80080), (1001, 78800), (1040, 75845), (1100, 71708), (1144, 68950), (1232, 64025), (1300, 60676), (1379, 57200), (1400, 56342), (1430, 55160), (1456, 54175), (1540, 51220), (1576, 50050), (1820, 43340), (1925, 40976), (1970, 40040), (2002, 39400), (2167, 36400), (2200, 35854), (2275, 34672), (2288, 34475), (2561, 30800), (2600, 30338), (2758, 28600), (2800, 28171), (2860, 27580), (3080, 25610), (3152, 25025), (3575, 22064), (3640, 21670), (3850, 20488), (3940, 20020), (4004, 19700), (4334, 18200), (4400, 17927), (4550, 17336), (4925, 16016), (5005, 15760), (5122, 15400), (5200, 15169), (5516, 14300), (5720, 13790), (6160, 12805), (6895, 11440), (7150, 11032), (7280, 10835), (7700, 10244), (7880, 10010), (8008, 9850), (8668, 9100)]