80140450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{887}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 161864640

約数和(自身を除く): 81724190

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 278, 325, 650, 695, 887, 1390, 1774, 1807, 3475, 3614, 4435, 6950, 8870, 9035, 11531, 18070, 22175, 23062, 44350, 45175, 57655, 90350, 115310, 123293, 246586, 288275, 576550, 616465, 1232930, 1602809, 3082325, 3205618, 6164650, 8014045, 16028090, 40070225, 80140450]

約数ペア:

[(1, 80140450), (2, 40070225), (5, 16028090), (10, 8014045), (13, 6164650), (25, 3205618), (26, 3082325), (50, 1602809), (65, 1232930), (130, 616465), (139, 576550), (278, 288275), (325, 246586), (650, 123293), (695, 115310), (887, 90350), (1390, 57655), (1774, 45175), (1807, 44350), (3475, 23062), (3614, 22175), (4435, 18070), (6950, 11531), (8870, 9035)]