199068890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{2011}}^1$

素因数の和:2558

約数の個数: 32

約数和(自身を含む): 378095040

約数和(自身を除く): 179026150

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 521, 1042, 2011, 2605, 4022, 5210, 9899, 10055, 19798, 20110, 38209, 49495, 76418, 98990, 191045, 382090, 1047731, 2095462, 5238655, 10477310, 19906889, 39813778, 99534445, 199068890]

約数ペア:

[(1, 199068890), (2, 99534445), (5, 39813778), (10, 19906889), (19, 10477310), (38, 5238655), (95, 2095462), (190, 1047731), (521, 382090), (1042, 191045), (2011, 98990), (2605, 76418), (4022, 49495), (5210, 38209), (9899, 20110), (10055, 19798)]