12871664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3257}}^1$

素因数の和:3297

約数の個数: 40

約数和(自身を含む): 28279440

約数和(自身を除く): 15407776

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3257, 3952, 6514, 13028, 26056, 42341, 52112, 61883, 84682, 123766, 169364, 247532, 338728, 495064, 677456, 804479, 990128, 1608958, 3217916, 6435832, 12871664]

約数ペア:

[(1, 12871664), (2, 6435832), (4, 3217916), (8, 1608958), (13, 990128), (16, 804479), (19, 677456), (26, 495064), (38, 338728), (52, 247532), (76, 169364), (104, 123766), (152, 84682), (208, 61883), (247, 52112), (304, 42341), (494, 26056), (988, 13028), (1976, 6514), (3257, 3952)]