19840940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7459}}^1$

素因数の和:7494

約数の個数: 48

約数和(自身を含む): 50131200

約数和(自身を除く): 30290260

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, 7459, 14918, 29836, 37295, 52213, 74590, 104426, 141721, 149180, 208852, 261065, 283442, 522130, 566884, 708605, 992047, 1044260, 1417210, 1984094, 2834420, 3968188, 4960235, 9920470, 19840940]

約数ペア:

[(1, 19840940), (2, 9920470), (4, 4960235), (5, 3968188), (7, 2834420), (10, 1984094), (14, 1417210), (19, 1044260), (20, 992047), (28, 708605), (35, 566884), (38, 522130), (70, 283442), (76, 261065), (95, 208852), (133, 149180), (140, 141721), (190, 104426), (266, 74590), (380, 52213), (532, 37295), (665, 29836), (1330, 14918), (2660, 7459)]