20138692808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1\times {\mathrm{5647}}^1$

素因数の和:6366

約数の個数: 64

約数和(自身を含む): 41503311360

約数和(自身を除く): 21364618552

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 647, 689, 1294, 1378, 2588, 2756, 5176, 5512, 5647, 8411, 11294, 16822, 22588, 33644, 34291, 45176, 67288, 68582, 73411, 137164, 146822, 274328, 293644, 299291, 445783, 587288, 598582, 891566, 1197164, 1783132, 2394328, 3566264, 3653609, 3890783, 7307218, 7781566, 14614436, 15563132, 29228872, 31126264, 47496917, 94993834, 189987668, 193641277, 379975336, 387282554, 774565108, 1549130216, 2517336601, 5034673202, 10069346404, 20138692808]

約数ペア:

[(1, 20138692808), (2, 10069346404), (4, 5034673202), (8, 2517336601), (13, 1549130216), (26, 774565108), (52, 387282554), (53, 379975336), (104, 193641277), (106, 189987668), (212, 94993834), (424, 47496917), (647, 31126264), (689, 29228872), (1294, 15563132), (1378, 14614436), (2588, 7781566), (2756, 7307218), (5176, 3890783), (5512, 3653609), (5647, 3566264), (8411, 2394328), (11294, 1783132), (16822, 1197164), (22588, 891566), (33644, 598582), (34291, 587288), (45176, 445783), (67288, 299291), (68582, 293644), (73411, 274328), (137164, 146822)]