261521505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4799}}^1$

素因数の和:4990

約数の個数: 48

約数和(自身を含む): 521164800

約数和(自身を除く): 259643295

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 173, 315, 519, 865, 1211, 1557, 2595, 3633, 4799, 6055, 7785, 10899, 14397, 18165, 23995, 33593, 43191, 54495, 71985, 100779, 167965, 215955, 302337, 503895, 830227, 1511685, 2490681, 4151135, 5811589, 7472043, 12453405, 17434767, 29057945, 37360215, 52304301, 87173835, 261521505]

約数ペア:

[(1, 261521505), (3, 87173835), (5, 52304301), (7, 37360215), (9, 29057945), (15, 17434767), (21, 12453405), (35, 7472043), (45, 5811589), (63, 4151135), (105, 2490681), (173, 1511685), (315, 830227), (519, 503895), (865, 302337), (1211, 215955), (1557, 167965), (2595, 100779), (3633, 71985), (4799, 54495), (6055, 43191), (7785, 33593), (10899, 23995), (14397, 18165)]