16819225

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 21795480

約数和(自身を除く): 4976255

約数列:

[1, 5, 25, 41, 61, 205, 269, 305, 1025, 1345, 1525, 2501, 6725, 11029, 12505, 16409, 55145, 62525, 82045, 275725, 410225, 672769, 3363845, 16819225]

約数ペア:

[(1, 16819225), (5, 3363845), (25, 672769), (41, 410225), (61, 275725), (205, 82045), (269, 62525), (305, 55145), (1025, 16409), (1345, 12505), (1525, 11029), (2501, 6725)]