19221280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9241}}^1$

素因数の和:9269

約数の個数: 48

約数和(自身を含む): 48908664

約数和(自身を除く): 29687384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9241, 18482, 36964, 46205, 73928, 92410, 120133, 147856, 184820, 240266, 295712, 369640, 480532, 600665, 739280, 961064, 1201330, 1478560, 1922128, 2402660, 3844256, 4805320, 9610640, 19221280]

約数ペア:

[(1, 19221280), (2, 9610640), (4, 4805320), (5, 3844256), (8, 2402660), (10, 1922128), (13, 1478560), (16, 1201330), (20, 961064), (26, 739280), (32, 600665), (40, 480532), (52, 369640), (65, 295712), (80, 240266), (104, 184820), (130, 147856), (160, 120133), (208, 92410), (260, 73928), (416, 46205), (520, 36964), (1040, 18482), (2080, 9241)]