21907440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30427}}^1$

素因数の和:30446

約数の個数: 60

約数和(自身を含む): 73574904

約数和(自身を除く): 51667464

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, 30427, 60854, 91281, 121708, 152135, 182562, 243416, 273843, 304270, 365124, 456405, 486832, 547686, 608540, 730248, 912810, 1095372, 1217080, 1369215, 1460496, 1825620, 2190744, 2434160, 2738430, 3651240, 4381488, 5476860, 7302480, 10953720, 21907440]

約数ペア:

[(1, 21907440), (2, 10953720), (3, 7302480), (4, 5476860), (5, 4381488), (6, 3651240), (8, 2738430), (9, 2434160), (10, 2190744), (12, 1825620), (15, 1460496), (16, 1369215), (18, 1217080), (20, 1095372), (24, 912810), (30, 730248), (36, 608540), (40, 547686), (45, 486832), (48, 456405), (60, 365124), (72, 304270), (80, 273843), (90, 243416), (120, 182562), (144, 152135), (180, 121708), (240, 91281), (360, 60854), (720, 30427)]