205451505

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{217409}}^1$

素因数の和:217430

約数の個数: 32

約数和(自身を含む): 417427200

約数和(自身を除く): 211975695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 217409, 652227, 1087045, 1521863, 1956681, 3261135, 4565589, 5870043, 7609315, 9783405, 13696767, 22827945, 29350215, 41090301, 68483835, 205451505]

約数ペア:

[(1, 205451505), (3, 68483835), (5, 41090301), (7, 29350215), (9, 22827945), (15, 13696767), (21, 9783405), (27, 7609315), (35, 5870043), (45, 4565589), (63, 3261135), (105, 1956681), (135, 1521863), (189, 1087045), (315, 652227), (945, 217409)]