156980075

素因数分解:

$5^2\times 7^2\times {\mathrm{128147}}^1$

素因数の和:128171

約数の個数: 18

約数和(自身を含む): 226437516

約数和(自身を除く): 69457441

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 128147, 640735, 897029, 3203675, 4485145, 6279203, 22425725, 31396015, 156980075]

約数ペア:

[(1, 156980075), (5, 31396015), (7, 22425725), (25, 6279203), (35, 4485145), (49, 3203675), (175, 897029), (245, 640735), (1225, 128147)]