251017520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241363}}^1$

素因数の和:241389

約数の個数: 40

約数和(自身を含む): 628511856

約数和(自身を除く): 377494336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 241363, 482726, 965452, 1206815, 1930904, 2413630, 3137719, 3861808, 4827260, 6275438, 9654520, 12550876, 15688595, 19309040, 25101752, 31377190, 50203504, 62754380, 125508760, 251017520]

約数ペア:

[(1, 251017520), (2, 125508760), (4, 62754380), (5, 50203504), (8, 31377190), (10, 25101752), (13, 19309040), (16, 15688595), (20, 12550876), (26, 9654520), (40, 6275438), (52, 4827260), (65, 3861808), (80, 3137719), (104, 2413630), (130, 1930904), (208, 1206815), (260, 965452), (520, 482726), (1040, 241363)]