79709200

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1973}}^1$

素因数の和:2092

約数の個数: 60

約数和(自身を含む): 193495428

約数和(自身を除く): 113786228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 1973, 2020, 2525, 3946, 4040, 5050, 7892, 8080, 9865, 10100, 15784, 19730, 20200, 31568, 39460, 40400, 49325, 78920, 98650, 157840, 197300, 199273, 394600, 398546, 789200, 797092, 996365, 1594184, 1992730, 3188368, 3985460, 4981825, 7970920, 9963650, 15941840, 19927300, 39854600, 79709200]

約数ペア:

[(1, 79709200), (2, 39854600), (4, 19927300), (5, 15941840), (8, 9963650), (10, 7970920), (16, 4981825), (20, 3985460), (25, 3188368), (40, 1992730), (50, 1594184), (80, 996365), (100, 797092), (101, 789200), (200, 398546), (202, 394600), (400, 199273), (404, 197300), (505, 157840), (808, 98650), (1010, 78920), (1616, 49325), (1973, 40400), (2020, 39460), (2525, 31568), (3946, 20200), (4040, 19730), (5050, 15784), (7892, 10100), (8080, 9865)]