201397245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 390727680

約数和(自身を除く): 189330435

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 157, 285, 399, 471, 643, 665, 785, 1099, 1929, 1995, 2355, 2983, 3215, 3297, 4501, 5495, 8949, 9645, 12217, 13503, 14915, 16485, 20881, 22505, 36651, 44745, 61085, 62643, 67515, 85519, 100951, 104405, 183255, 256557, 302853, 313215, 427595, 504755, 706657, 1282785, 1514265, 1918069, 2119971, 3533285, 5754207, 9590345, 10599855, 13426483, 28771035, 40279449, 67132415, 201397245]

約数ペア:

[(1, 201397245), (3, 67132415), (5, 40279449), (7, 28771035), (15, 13426483), (19, 10599855), (21, 9590345), (35, 5754207), (57, 3533285), (95, 2119971), (105, 1918069), (133, 1514265), (157, 1282785), (285, 706657), (399, 504755), (471, 427595), (643, 313215), (665, 302853), (785, 256557), (1099, 183255), (1929, 104405), (1995, 100951), (2355, 85519), (2983, 67515), (3215, 62643), (3297, 61085), (4501, 44745), (5495, 36651), (8949, 22505), (9645, 20881), (12217, 16485), (13503, 14915)]