19745375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 27518400

約数和(自身を除く): 7773025

約数列:

[1, 5, 13, 25, 29, 65, 125, 145, 325, 377, 419, 725, 1625, 1885, 2095, 3625, 5447, 9425, 10475, 12151, 27235, 47125, 52375, 60755, 136175, 157963, 303775, 680875, 789815, 1518875, 3949075, 19745375]

約数ペア:

[(1, 19745375), (5, 3949075), (13, 1518875), (25, 789815), (29, 680875), (65, 303775), (125, 157963), (145, 136175), (325, 60755), (377, 52375), (419, 47125), (725, 27235), (1625, 12151), (1885, 10475), (2095, 9425), (3625, 5447)]