157213885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 205470720

約数和(自身を除く): 48256835

約数列:

[1, 5, 19, 41, 95, 181, 205, 223, 779, 905, 1115, 3439, 3895, 4237, 7421, 9143, 17195, 21185, 37105, 40363, 45715, 140999, 173717, 201815, 704995, 766897, 868585, 1654883, 3834485, 8274415, 31442777, 157213885]

約数ペア:

[(1, 157213885), (5, 31442777), (19, 8274415), (41, 3834485), (95, 1654883), (181, 868585), (205, 766897), (223, 704995), (779, 201815), (905, 173717), (1115, 140999), (3439, 45715), (3895, 40363), (4237, 37105), (7421, 21185), (9143, 17195)]