217584780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{518059}}^1$

素因数の和:518078

約数の個数: 48

約数和(自身を含む): 696272640

約数和(自身を除く): 478687860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 518059, 1036118, 1554177, 2072236, 2590295, 3108354, 3626413, 5180590, 6216708, 7252826, 7770885, 10361180, 10879239, 14505652, 15541770, 18132065, 21758478, 31083540, 36264130, 43516956, 54396195, 72528260, 108792390, 217584780]

約数ペア:

[(1, 217584780), (2, 108792390), (3, 72528260), (4, 54396195), (5, 43516956), (6, 36264130), (7, 31083540), (10, 21758478), (12, 18132065), (14, 15541770), (15, 14505652), (20, 10879239), (21, 10361180), (28, 7770885), (30, 7252826), (35, 6216708), (42, 5180590), (60, 3626413), (70, 3108354), (84, 2590295), (105, 2072236), (140, 1554177), (210, 1036118), (420, 518059)]