20274064

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3923}}^1$

素因数の和:3967

約数の個数: 40

約数和(自身を含む): 43791840

約数和(自身を除く): 23517776

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3923, 5168, 7846, 15692, 31384, 62768, 66691, 74537, 133382, 149074, 266764, 298148, 533528, 596296, 1067056, 1192592, 1267129, 2534258, 5068516, 10137032, 20274064]

約数ペア:

[(1, 20274064), (2, 10137032), (4, 5068516), (8, 2534258), (16, 1267129), (17, 1192592), (19, 1067056), (34, 596296), (38, 533528), (68, 298148), (76, 266764), (136, 149074), (152, 133382), (272, 74537), (304, 66691), (323, 62768), (646, 31384), (1292, 15692), (2584, 7846), (3923, 5168)]