201213075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{61}}^2\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 390284544

約数和(自身を除く): 189071469

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 61, 75, 103, 105, 175, 183, 305, 309, 427, 515, 525, 721, 915, 1281, 1525, 1545, 2135, 2163, 2575, 3605, 3721, 4575, 6283, 6405, 7725, 10675, 10815, 11163, 18025, 18605, 18849, 26047, 31415, 32025, 43981, 54075, 55815, 78141, 93025, 94245, 130235, 131943, 157075, 219905, 279075, 383263, 390705, 471225, 651175, 659715, 1099525, 1149789, 1916315, 1953525, 2682841, 3298575, 5748945, 8048523, 9581575, 13414205, 28744725, 40242615, 67071025, 201213075]

約数ペア:

[(1, 201213075), (3, 67071025), (5, 40242615), (7, 28744725), (15, 13414205), (21, 9581575), (25, 8048523), (35, 5748945), (61, 3298575), (75, 2682841), (103, 1953525), (105, 1916315), (175, 1149789), (183, 1099525), (305, 659715), (309, 651175), (427, 471225), (515, 390705), (525, 383263), (721, 279075), (915, 219905), (1281, 157075), (1525, 131943), (1545, 130235), (2135, 94245), (2163, 93025), (2575, 78141), (3605, 55815), (3721, 54075), (4575, 43981), (6283, 32025), (6405, 31415), (7725, 26047), (10675, 18849), (10815, 18605), (11163, 18025)]