28736740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 64915200

約数和(自身を除く): 36178460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1609, 1786, 3218, 3572, 4465, 6436, 8045, 8930, 16090, 17860, 30571, 32180, 61142, 75623, 122284, 151246, 152855, 302492, 305710, 378115, 611420, 756230, 1436837, 1512460, 2873674, 5747348, 7184185, 14368370, 28736740]

約数ペア:

[(1, 28736740), (2, 14368370), (4, 7184185), (5, 5747348), (10, 2873674), (19, 1512460), (20, 1436837), (38, 756230), (47, 611420), (76, 378115), (94, 305710), (95, 302492), (188, 152855), (190, 151246), (235, 122284), (380, 75623), (470, 61142), (893, 32180), (940, 30571), (1609, 17860), (1786, 16090), (3218, 8930), (3572, 8045), (4465, 6436)]