15215765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 20756736

約数和(自身を除く): 5540971

約数列:

[1, 5, 17, 23, 43, 85, 115, 181, 215, 391, 731, 905, 989, 1955, 3077, 3655, 4163, 4945, 7783, 15385, 16813, 20815, 38915, 70771, 84065, 132311, 179009, 353855, 661555, 895045, 3043153, 15215765]

約数ペア:

[(1, 15215765), (5, 3043153), (17, 895045), (23, 661555), (43, 353855), (85, 179009), (115, 132311), (181, 84065), (215, 70771), (391, 38915), (731, 20815), (905, 16813), (989, 15385), (1955, 7783), (3077, 4945), (3655, 4163)]