21980880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30529}}^1$

素因数の和:30548

約数の個数: 60

約数和(自身を含む): 73821540

約数和(自身を除く): 51840660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30529, 61058, 91587, 122116, 152645, 183174, 244232, 274761, 305290, 366348, 457935, 488464, 549522, 610580, 732696, 915870, 1099044, 1221160, 1373805, 1465392, 1831740, 2198088, 2442320, 2747610, 3663480, 4396176, 5495220, 7326960, 10990440, 21980880]

約数ペア:

[(1, 21980880), (2, 10990440), (3, 7326960), (4, 5495220), (5, 4396176), (6, 3663480), (8, 2747610), (9, 2442320), (10, 2198088), (12, 1831740), (15, 1465392), (16, 1373805), (18, 1221160), (20, 1099044), (24, 915870), (30, 732696), (36, 610580), (40, 549522), (45, 488464), (48, 457935), (60, 366348), (72, 305290), (80, 274761), (90, 244232), (120, 183174), (144, 152645), (180, 122116), (240, 91587), (360, 61058), (720, 30529)]