217016520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{258353}}^1$

素因数の和:258374

約数の個数: 64

約数和(自身を含む): 744059520

約数和(自身を除く): 527043000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 258353, 516706, 775059, 1033412, 1291765, 1550118, 1808471, 2066824, 2583530, 3100236, 3616942, 3875295, 5167060, 5425413, 6200472, 7233884, 7750590, 9042355, 10334120, 10850826, 14467768, 15501180, 18084710, 21701652, 27127065, 31002360, 36169420, 43403304, 54254130, 72338840, 108508260, 217016520]

約数ペア:

[(1, 217016520), (2, 108508260), (3, 72338840), (4, 54254130), (5, 43403304), (6, 36169420), (7, 31002360), (8, 27127065), (10, 21701652), (12, 18084710), (14, 15501180), (15, 14467768), (20, 10850826), (21, 10334120), (24, 9042355), (28, 7750590), (30, 7233884), (35, 6200472), (40, 5425413), (42, 5167060), (56, 3875295), (60, 3616942), (70, 3100236), (84, 2583530), (105, 2066824), (120, 1808471), (140, 1550118), (168, 1291765), (210, 1033412), (280, 775059), (420, 516706), (840, 258353)]