208772305

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2897}}^1$

素因数の和:3009

約数の個数: 32

約数和(自身を含む): 300464640

約数和(自身を除く): 91692335

約数列:

[1, 5, 7, 29, 35, 71, 145, 203, 355, 497, 1015, 2059, 2485, 2897, 10295, 14413, 14485, 20279, 72065, 84013, 101395, 205687, 420065, 588091, 1028435, 1439809, 2940455, 5964923, 7199045, 29824615, 41754461, 208772305]

約数ペア:

[(1, 208772305), (5, 41754461), (7, 29824615), (29, 7199045), (35, 5964923), (71, 2940455), (145, 1439809), (203, 1028435), (355, 588091), (497, 420065), (1015, 205687), (2059, 101395), (2485, 84013), (2897, 72065), (10295, 20279), (14413, 14485)]