19404875

素因数分解:

$5^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 28174848

約数和(自身を除く): 8769973

約数列:

[1, 5, 7, 25, 35, 67, 125, 175, 331, 335, 469, 875, 1655, 1675, 2317, 2345, 8275, 8375, 11585, 11725, 22177, 41375, 57925, 58625, 110885, 155239, 289625, 554425, 776195, 2772125, 3880975, 19404875]

約数ペア:

[(1, 19404875), (5, 3880975), (7, 2772125), (25, 776195), (35, 554425), (67, 289625), (125, 155239), (175, 110885), (331, 58625), (335, 57925), (469, 41375), (875, 22177), (1655, 11725), (1675, 11585), (2317, 8375), (2345, 8275)]