18915480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{52543}}^1$

素因数の和:52560

約数の個数: 48

約数和(自身を含む): 61476480

約数和(自身を除く): 42561000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 52543, 105086, 157629, 210172, 262715, 315258, 420344, 472887, 525430, 630516, 788145, 945774, 1050860, 1261032, 1576290, 1891548, 2101720, 2364435, 3152580, 3783096, 4728870, 6305160, 9457740, 18915480]

約数ペア:

[(1, 18915480), (2, 9457740), (3, 6305160), (4, 4728870), (5, 3783096), (6, 3152580), (8, 2364435), (9, 2101720), (10, 1891548), (12, 1576290), (15, 1261032), (18, 1050860), (20, 945774), (24, 788145), (30, 630516), (36, 525430), (40, 472887), (45, 420344), (60, 315258), (72, 262715), (90, 210172), (120, 157629), (180, 105086), (360, 52543)]