21070800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1951}}^1$

素因数の和:1978

約数の個数: 120

約数和(自身を含む): 75034880

約数和(自身を除く): 53964080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300, 360, 400, 432, 450, 540, 600, 675, 720, 900, 1080, 1200, 1350, 1800, 1951, 2160, 2700, 3600, 3902, 5400, 5853, 7804, 9755, 10800, 11706, 15608, 17559, 19510, 23412, 29265, 31216, 35118, 39020, 46824, 48775, 52677, 58530, 70236, 78040, 87795, 93648, 97550, 105354, 117060, 140472, 146325, 156080, 175590, 195100, 210708, 234120, 263385, 280944, 292650, 351180, 390200, 421416, 438975, 468240, 526770, 585300, 702360, 780400, 842832, 877950, 1053540, 1170600, 1316925, 1404720, 1755900, 2107080, 2341200, 2633850, 3511800, 4214160, 5267700, 7023600, 10535400, 21070800]

約数ペア:

[(1, 21070800), (2, 10535400), (3, 7023600), (4, 5267700), (5, 4214160), (6, 3511800), (8, 2633850), (9, 2341200), (10, 2107080), (12, 1755900), (15, 1404720), (16, 1316925), (18, 1170600), (20, 1053540), (24, 877950), (25, 842832), (27, 780400), (30, 702360), (36, 585300), (40, 526770), (45, 468240), (48, 438975), (50, 421416), (54, 390200), (60, 351180), (72, 292650), (75, 280944), (80, 263385), (90, 234120), (100, 210708), (108, 195100), (120, 175590), (135, 156080), (144, 146325), (150, 140472), (180, 117060), (200, 105354), (216, 97550), (225, 93648), (240, 87795), (270, 78040), (300, 70236), (360, 58530), (400, 52677), (432, 48775), (450, 46824), (540, 39020), (600, 35118), (675, 31216), (720, 29265), (900, 23412), (1080, 19510), (1200, 17559), (1350, 15608), (1800, 11706), (1951, 10800), (2160, 9755), (2700, 7804), (3600, 5853), (3902, 5400)]