25172720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16561}}^1$

素因数の和:16593

約数の個数: 40

約数和(自身を含む): 61610640

約数和(自身を除く): 36437920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 16561, 33122, 66244, 82805, 132488, 165610, 264976, 314659, 331220, 629318, 662440, 1258636, 1324880, 1573295, 2517272, 3146590, 5034544, 6293180, 12586360, 25172720]

約数ペア:

[(1, 25172720), (2, 12586360), (4, 6293180), (5, 5034544), (8, 3146590), (10, 2517272), (16, 1573295), (19, 1324880), (20, 1258636), (38, 662440), (40, 629318), (76, 331220), (80, 314659), (95, 264976), (152, 165610), (190, 132488), (304, 82805), (380, 66244), (760, 33122), (1520, 16561)]