2021786875

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:625

約数の個数: 40

約数和(自身を含む): 2606578128

約数和(自身を除く): 584791253

約数列:

[1, 5, 25, 41, 125, 205, 257, 307, 625, 1025, 1285, 1535, 5125, 6425, 7675, 10537, 12587, 25625, 32125, 38375, 52685, 62935, 78899, 160625, 191875, 263425, 314675, 394495, 1317125, 1573375, 1972475, 3234859, 6585625, 7866875, 9862375, 16174295, 49311875, 80871475, 404357375, 2021786875]

約数ペア:

[(1, 2021786875), (5, 404357375), (25, 80871475), (41, 49311875), (125, 16174295), (205, 9862375), (257, 7866875), (307, 6585625), (625, 3234859), (1025, 1972475), (1285, 1573375), (1535, 1317125), (5125, 394495), (6425, 314675), (7675, 263425), (10537, 191875), (12587, 160625), (25625, 78899), (32125, 62935), (38375, 52685)]