281975440

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{11261}}^1$

素因数の和:11587

約数の個数: 40

約数和(自身を含む): 657745848

約数和(自身を除く): 375770408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 5008, 6260, 11261, 12520, 22522, 25040, 45044, 56305, 90088, 112610, 180176, 225220, 450440, 900880, 3524693, 7049386, 14098772, 17623465, 28197544, 35246930, 56395088, 70493860, 140987720, 281975440]

約数ペア:

[(1, 281975440), (2, 140987720), (4, 70493860), (5, 56395088), (8, 35246930), (10, 28197544), (16, 17623465), (20, 14098772), (40, 7049386), (80, 3524693), (313, 900880), (626, 450440), (1252, 225220), (1565, 180176), (2504, 112610), (3130, 90088), (5008, 56305), (6260, 45044), (11261, 25040), (12520, 22522)]