217210980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{517169}}^1$

素因数の和:517188

約数の個数: 48

約数和(自身を含む): 695076480

約数和(自身を除く): 477865500

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, 517169, 1034338, 1551507, 2068676, 2585845, 3103014, 3620183, 5171690, 6206028, 7240366, 7757535, 10343380, 10860549, 14480732, 15515070, 18100915, 21721098, 31030140, 36201830, 43442196, 54302745, 72403660, 108605490, 217210980]

約数ペア:

[(1, 217210980), (2, 108605490), (3, 72403660), (4, 54302745), (5, 43442196), (6, 36201830), (7, 31030140), (10, 21721098), (12, 18100915), (14, 15515070), (15, 14480732), (20, 10860549), (21, 10343380), (28, 7757535), (30, 7240366), (35, 6206028), (42, 5171690), (60, 3620183), (70, 3103014), (84, 2585845), (105, 2068676), (140, 1551507), (210, 1034338), (420, 517169)]