38797180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 84157920

約数和(自身を除く): 45360740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 197, 215, 229, 394, 430, 458, 788, 860, 916, 985, 1145, 1970, 2290, 3940, 4580, 8471, 9847, 16942, 19694, 33884, 39388, 42355, 45113, 49235, 84710, 90226, 98470, 169420, 180452, 196940, 225565, 451130, 902260, 1939859, 3879718, 7759436, 9699295, 19398590, 38797180]

約数ペア:

[(1, 38797180), (2, 19398590), (4, 9699295), (5, 7759436), (10, 3879718), (20, 1939859), (43, 902260), (86, 451130), (172, 225565), (197, 196940), (215, 180452), (229, 169420), (394, 98470), (430, 90226), (458, 84710), (788, 49235), (860, 45113), (916, 42355), (985, 39388), (1145, 33884), (1970, 19694), (2290, 16942), (3940, 9847), (4580, 8471)]