81978780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{463}}^1$

素因数の和:715

約数の個数: 96

約数和(自身を含む): 248822784

約数和(自身を除く): 166844004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 227, 260, 390, 454, 463, 681, 780, 908, 926, 1135, 1362, 1389, 1852, 2270, 2315, 2724, 2778, 2951, 3405, 4540, 4630, 5556, 5902, 6019, 6810, 6945, 8853, 9260, 11804, 12038, 13620, 13890, 14755, 17706, 18057, 24076, 27780, 29510, 30095, 35412, 36114, 44265, 59020, 60190, 72228, 88530, 90285, 105101, 120380, 177060, 180570, 210202, 315303, 361140, 420404, 525505, 630606, 1051010, 1261212, 1366313, 1576515, 2102020, 2732626, 3153030, 4098939, 5465252, 6306060, 6831565, 8197878, 13663130, 16395756, 20494695, 27326260, 40989390, 81978780]

約数ペア:

[(1, 81978780), (2, 40989390), (3, 27326260), (4, 20494695), (5, 16395756), (6, 13663130), (10, 8197878), (12, 6831565), (13, 6306060), (15, 5465252), (20, 4098939), (26, 3153030), (30, 2732626), (39, 2102020), (52, 1576515), (60, 1366313), (65, 1261212), (78, 1051010), (130, 630606), (156, 525505), (195, 420404), (227, 361140), (260, 315303), (390, 210202), (454, 180570), (463, 177060), (681, 120380), (780, 105101), (908, 90285), (926, 88530), (1135, 72228), (1362, 60190), (1389, 59020), (1852, 44265), (2270, 36114), (2315, 35412), (2724, 30095), (2778, 29510), (2951, 27780), (3405, 24076), (4540, 18057), (4630, 17706), (5556, 14755), (5902, 13890), (6019, 13620), (6810, 12038), (6945, 11804), (8853, 9260)]