2019619375

素因数分解:

$5^4\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:613

約数の個数: 40

約数和(自身を含む): 2597918400

約数和(自身を除く): 578299025

約数列:

[1, 5, 25, 47, 125, 197, 235, 349, 625, 985, 1175, 1745, 4925, 5875, 8725, 9259, 16403, 24625, 29375, 43625, 46295, 68753, 82015, 123125, 218125, 231475, 343765, 410075, 1157375, 1718825, 2050375, 3231391, 5786875, 8594125, 10251875, 16156955, 42970625, 80784775, 403923875, 2019619375]

約数ペア:

[(1, 2019619375), (5, 403923875), (25, 80784775), (47, 42970625), (125, 16156955), (197, 10251875), (235, 8594125), (349, 5786875), (625, 3231391), (985, 2050375), (1175, 1718825), (1745, 1157375), (4925, 410075), (5875, 343765), (8725, 231475), (9259, 218125), (16403, 123125), (24625, 82015), (29375, 68753), (43625, 46295)]