251280492460

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1447}}^1\times {\mathrm{27919}}^1$

素因数の和:29686

約数の個数: 48

約数和(自身を含む): 529770608640

約数和(自身を除く): 278490116180

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1447, 1555, 2894, 3110, 5788, 6220, 7235, 14470, 27919, 28940, 55838, 111676, 139595, 279190, 450017, 558380, 900034, 1800068, 2250085, 4500170, 8682809, 9000340, 17365618, 34731236, 40398793, 43414045, 80797586, 86828090, 161595172, 173656180, 201993965, 403987930, 807975860, 12564024623, 25128049246, 50256098492, 62820123115, 125640246230, 251280492460]

約数ペア:

[(1, 251280492460), (2, 125640246230), (4, 62820123115), (5, 50256098492), (10, 25128049246), (20, 12564024623), (311, 807975860), (622, 403987930), (1244, 201993965), (1447, 173656180), (1555, 161595172), (2894, 86828090), (3110, 80797586), (5788, 43414045), (6220, 40398793), (7235, 34731236), (14470, 17365618), (27919, 9000340), (28940, 8682809), (55838, 4500170), (111676, 2250085), (139595, 1800068), (279190, 900034), (450017, 558380)]