390465908

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{12689}}^1$

素因数の和:12864

約数の個数: 36

約数和(自身を含む): 800002980

約数和(自身を除く): 409537072

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 1099, 2198, 4396, 7693, 12689, 15386, 25378, 30772, 50756, 88823, 177646, 355292, 621761, 1243522, 1992173, 2487044, 3984346, 7968692, 13945211, 27890422, 55780844, 97616477, 195232954, 390465908]

約数ペア:

[(1, 390465908), (2, 195232954), (4, 97616477), (7, 55780844), (14, 27890422), (28, 13945211), (49, 7968692), (98, 3984346), (157, 2487044), (196, 1992173), (314, 1243522), (628, 621761), (1099, 355292), (2198, 177646), (4396, 88823), (7693, 50756), (12689, 30772), (15386, 25378)]