261320280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1319}}^1$

素因数の和:1473

約数の個数: 128

約数和(自身を含む): 851558400

約数和(自身を除く): 590238120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 127, 130, 156, 195, 254, 260, 312, 381, 390, 508, 520, 635, 762, 780, 1016, 1270, 1319, 1524, 1560, 1651, 1905, 2540, 2638, 3048, 3302, 3810, 3957, 4953, 5080, 5276, 6595, 6604, 7620, 7914, 8255, 9906, 10552, 13190, 13208, 15240, 15828, 16510, 17147, 19785, 19812, 24765, 26380, 31656, 33020, 34294, 39570, 39624, 49530, 51441, 52760, 66040, 68588, 79140, 85735, 99060, 102882, 137176, 158280, 167513, 171470, 198120, 205764, 257205, 335026, 342940, 411528, 502539, 514410, 670052, 685880, 837565, 1005078, 1028820, 1340104, 1675130, 2010156, 2057640, 2177669, 2512695, 3350260, 4020312, 4355338, 5025390, 6533007, 6700520, 8710676, 10050780, 10888345, 13066014, 17421352, 20101560, 21776690, 26132028, 32665035, 43553380, 52264056, 65330070, 87106760, 130660140, 261320280]

約数ペア:

[(1, 261320280), (2, 130660140), (3, 87106760), (4, 65330070), (5, 52264056), (6, 43553380), (8, 32665035), (10, 26132028), (12, 21776690), (13, 20101560), (15, 17421352), (20, 13066014), (24, 10888345), (26, 10050780), (30, 8710676), (39, 6700520), (40, 6533007), (52, 5025390), (60, 4355338), (65, 4020312), (78, 3350260), (104, 2512695), (120, 2177669), (127, 2057640), (130, 2010156), (156, 1675130), (195, 1340104), (254, 1028820), (260, 1005078), (312, 837565), (381, 685880), (390, 670052), (508, 514410), (520, 502539), (635, 411528), (762, 342940), (780, 335026), (1016, 257205), (1270, 205764), (1319, 198120), (1524, 171470), (1560, 167513), (1651, 158280), (1905, 137176), (2540, 102882), (2638, 99060), (3048, 85735), (3302, 79140), (3810, 68588), (3957, 66040), (4953, 52760), (5080, 51441), (5276, 49530), (6595, 39624), (6604, 39570), (7620, 34294), (7914, 33020), (8255, 31656), (9906, 26380), (10552, 24765), (13190, 19812), (13208, 19785), (15240, 17147), (15828, 16510)]