311949180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4021}}^1$

素因数の和:4467

約数の個数: 72

約数和(自身を含む): 948677184

約数和(自身を除く): 636728004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431, 862, 1293, 1724, 2155, 2586, 3879, 4021, 4310, 5172, 6465, 7758, 8042, 8620, 12063, 12930, 15516, 16084, 19395, 20105, 24126, 25860, 36189, 38790, 40210, 48252, 60315, 72378, 77580, 80420, 120630, 144756, 180945, 241260, 361890, 723780, 1733051, 3466102, 5199153, 6932204, 8665255, 10398306, 15597459, 17330510, 20796612, 25995765, 31194918, 34661020, 51991530, 62389836, 77987295, 103983060, 155974590, 311949180]

約数ペア:

[(1, 311949180), (2, 155974590), (3, 103983060), (4, 77987295), (5, 62389836), (6, 51991530), (9, 34661020), (10, 31194918), (12, 25995765), (15, 20796612), (18, 17330510), (20, 15597459), (30, 10398306), (36, 8665255), (45, 6932204), (60, 5199153), (90, 3466102), (180, 1733051), (431, 723780), (862, 361890), (1293, 241260), (1724, 180945), (2155, 144756), (2586, 120630), (3879, 80420), (4021, 77580), (4310, 72378), (5172, 60315), (6465, 48252), (7758, 40210), (8042, 38790), (8620, 36189), (12063, 25860), (12930, 24126), (15516, 20105), (16084, 19395)]