140980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 362880

約数和(自身を除く): 221900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 53, 70, 76, 95, 106, 133, 140, 190, 212, 265, 266, 371, 380, 530, 532, 665, 742, 1007, 1060, 1330, 1484, 1855, 2014, 2660, 3710, 4028, 5035, 7049, 7420, 10070, 14098, 20140, 28196, 35245, 70490, 140980]

約数ペア:

[(1, 140980), (2, 70490), (4, 35245), (5, 28196), (7, 20140), (10, 14098), (14, 10070), (19, 7420), (20, 7049), (28, 5035), (35, 4028), (38, 3710), (53, 2660), (70, 2014), (76, 1855), (95, 1484), (106, 1330), (133, 1060), (140, 1007), (190, 742), (212, 665), (265, 532), (266, 530), (371, 380)]