2009076875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 2861908896

約数和(自身を除く): 852832021

約数列:

[1, 5, 13, 25, 37, 41, 65, 125, 163, 185, 205, 325, 481, 533, 625, 815, 925, 1025, 1517, 1625, 2119, 2405, 2665, 4075, 4625, 5125, 6031, 6683, 7585, 8125, 10595, 12025, 13325, 19721, 20375, 23125, 25625, 30155, 33415, 37925, 52975, 60125, 66625, 78403, 86879, 98605, 101875, 150775, 167075, 189625, 247271, 264875, 300625, 333125, 392015, 434395, 493025, 753875, 835375, 948125, 1236355, 1324375, 1960075, 2171975, 2465125, 3214523, 3769375, 4176875, 6181775, 9800375, 10859875, 12325625, 16072615, 30908875, 49001875, 54299375, 80363075, 154544375, 401815375, 2009076875]

約数ペア:

[(1, 2009076875), (5, 401815375), (13, 154544375), (25, 80363075), (37, 54299375), (41, 49001875), (65, 30908875), (125, 16072615), (163, 12325625), (185, 10859875), (205, 9800375), (325, 6181775), (481, 4176875), (533, 3769375), (625, 3214523), (815, 2465125), (925, 2171975), (1025, 1960075), (1517, 1324375), (1625, 1236355), (2119, 948125), (2405, 835375), (2665, 753875), (4075, 493025), (4625, 434395), (5125, 392015), (6031, 333125), (6683, 300625), (7585, 264875), (8125, 247271), (10595, 189625), (12025, 167075), (13325, 150775), (19721, 101875), (20375, 98605), (23125, 86879), (25625, 78403), (30155, 66625), (33415, 60125), (37925, 52975)]