19770325

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 25632288

約数和(自身を除く): 5861963

約数列:

[1, 5, 25, 43, 53, 215, 265, 347, 1075, 1325, 1735, 2279, 8675, 11395, 14921, 18391, 56975, 74605, 91955, 373025, 459775, 790813, 3954065, 19770325]

約数ペア:

[(1, 19770325), (5, 3954065), (25, 790813), (43, 459775), (53, 373025), (215, 91955), (265, 74605), (347, 56975), (1075, 18391), (1325, 14921), (1735, 11395), (2279, 8675)]