19478375

素因数分解:

$5^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 28169856

約数和(自身を除く): 8691481

約数列:

[1, 5, 7, 25, 35, 113, 125, 175, 197, 565, 791, 875, 985, 1379, 2825, 3955, 4925, 6895, 14125, 19775, 22261, 24625, 34475, 98875, 111305, 155827, 172375, 556525, 779135, 2782625, 3895675, 19478375]

約数ペア:

[(1, 19478375), (5, 3895675), (7, 2782625), (25, 779135), (35, 556525), (113, 172375), (125, 155827), (175, 111305), (197, 98875), (565, 34475), (791, 24625), (875, 22261), (985, 19775), (1379, 14125), (2825, 6895), (3955, 4925)]