19899460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7481}}^1$

素因数の和:7516

約数の個数: 48

約数和(自身を含む): 50279040

約数和(自身を除く): 30379580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7481, 14962, 29924, 37405, 52367, 74810, 104734, 142139, 149620, 209468, 261835, 284278, 523670, 568556, 710695, 994973, 1047340, 1421390, 1989946, 2842780, 3979892, 4974865, 9949730, 19899460]

約数ペア:

[(1, 19899460), (2, 9949730), (4, 4974865), (5, 3979892), (7, 2842780), (10, 1989946), (14, 1421390), (19, 1047340), (20, 994973), (28, 710695), (35, 568556), (38, 523670), (70, 284278), (76, 261835), (95, 209468), (133, 149620), (140, 142139), (190, 104734), (266, 74810), (380, 52367), (532, 37405), (665, 29924), (1330, 14962), (2660, 7481)]