389612140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{4273}}^1$

素因数の和:4426

約数の個数: 48

約数和(自身を含む): 844405632

約数和(自身を除く): 454793492

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 388, 470, 485, 940, 970, 1940, 4273, 4559, 8546, 9118, 17092, 18236, 21365, 22795, 42730, 45590, 85460, 91180, 200831, 401662, 414481, 803324, 828962, 1004155, 1657924, 2008310, 2072405, 4016620, 4144810, 8289620, 19480607, 38961214, 77922428, 97403035, 194806070, 389612140]

約数ペア:

[(1, 389612140), (2, 194806070), (4, 97403035), (5, 77922428), (10, 38961214), (20, 19480607), (47, 8289620), (94, 4144810), (97, 4016620), (188, 2072405), (194, 2008310), (235, 1657924), (388, 1004155), (470, 828962), (485, 803324), (940, 414481), (970, 401662), (1940, 200831), (4273, 91180), (4559, 85460), (8546, 45590), (9118, 42730), (17092, 22795), (18236, 21365)]