1290852840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{2521}}^1$

素因数の和:2803

約数の個数: 128

約数和(自身を含む): 4118325120

約数和(自身を除く): 2827472280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 251, 255, 340, 408, 502, 510, 680, 753, 1004, 1020, 1255, 1506, 2008, 2040, 2510, 2521, 3012, 3765, 4267, 5020, 5042, 6024, 7530, 7563, 8534, 10040, 10084, 12605, 12801, 15060, 15126, 17068, 20168, 21335, 25210, 25602, 30120, 30252, 34136, 37815, 42670, 42857, 50420, 51204, 60504, 64005, 75630, 85340, 85714, 100840, 102408, 128010, 128571, 151260, 170680, 171428, 214285, 256020, 257142, 302520, 342856, 428570, 512040, 514284, 632771, 642855, 857140, 1028568, 1265542, 1285710, 1714280, 1898313, 2531084, 2571420, 3163855, 3796626, 5062168, 5142840, 6327710, 7593252, 9491565, 10757107, 12655420, 15186504, 18983130, 21514214, 25310840, 32271321, 37966260, 43028428, 53785535, 64542642, 75932520, 86056856, 107571070, 129085284, 161356605, 215142140, 258170568, 322713210, 430284280, 645426420, 1290852840]

約数ペア:

[(1, 1290852840), (2, 645426420), (3, 430284280), (4, 322713210), (5, 258170568), (6, 215142140), (8, 161356605), (10, 129085284), (12, 107571070), (15, 86056856), (17, 75932520), (20, 64542642), (24, 53785535), (30, 43028428), (34, 37966260), (40, 32271321), (51, 25310840), (60, 21514214), (68, 18983130), (85, 15186504), (102, 12655420), (120, 10757107), (136, 9491565), (170, 7593252), (204, 6327710), (251, 5142840), (255, 5062168), (340, 3796626), (408, 3163855), (502, 2571420), (510, 2531084), (680, 1898313), (753, 1714280), (1004, 1285710), (1020, 1265542), (1255, 1028568), (1506, 857140), (2008, 642855), (2040, 632771), (2510, 514284), (2521, 512040), (3012, 428570), (3765, 342856), (4267, 302520), (5020, 257142), (5042, 256020), (6024, 214285), (7530, 171428), (7563, 170680), (8534, 151260), (10040, 128571), (10084, 128010), (12605, 102408), (12801, 100840), (15060, 85714), (15126, 85340), (17068, 75630), (20168, 64005), (21335, 60504), (25210, 51204), (25602, 50420), (30120, 42857), (30252, 42670), (34136, 37815)]