12650780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 14928100

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 151, 236, 284, 295, 302, 355, 590, 604, 710, 755, 1180, 1420, 1510, 3020, 4189, 8378, 8909, 10721, 16756, 17818, 20945, 21442, 35636, 41890, 42884, 44545, 53605, 83780, 89090, 107210, 178180, 214420, 632539, 1265078, 2530156, 3162695, 6325390, 12650780]

約数ペア:

[(1, 12650780), (2, 6325390), (4, 3162695), (5, 2530156), (10, 1265078), (20, 632539), (59, 214420), (71, 178180), (118, 107210), (142, 89090), (151, 83780), (236, 53605), (284, 44545), (295, 42884), (302, 41890), (355, 35636), (590, 21442), (604, 20945), (710, 17818), (755, 16756), (1180, 10721), (1420, 8909), (1510, 8378), (3020, 4189)]