19575640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{463}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 50780160

約数和(自身を除く): 31204520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 463, 604, 755, 926, 1057, 1208, 1510, 1852, 2114, 2315, 3020, 3241, 3704, 4228, 4630, 5285, 6040, 6482, 8456, 9260, 10570, 12964, 16205, 18520, 21140, 25928, 32410, 42280, 64820, 69913, 129640, 139826, 279652, 349565, 489391, 559304, 699130, 978782, 1398260, 1957564, 2446955, 2796520, 3915128, 4893910, 9787820, 19575640]

約数ペア:

[(1, 19575640), (2, 9787820), (4, 4893910), (5, 3915128), (7, 2796520), (8, 2446955), (10, 1957564), (14, 1398260), (20, 978782), (28, 699130), (35, 559304), (40, 489391), (56, 349565), (70, 279652), (140, 139826), (151, 129640), (280, 69913), (302, 64820), (463, 42280), (604, 32410), (755, 25928), (926, 21140), (1057, 18520), (1208, 16205), (1510, 12964), (1852, 10570), (2114, 9260), (2315, 8456), (3020, 6482), (3241, 6040), (3704, 5285), (4228, 4630)]