20123458672

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{276239}}^1$

素因数の和:276433

約数の個数: 40

約数和(自身を含む): 40590705600

約数和(自身を除く): 20467246928

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 157, 232, 314, 464, 628, 1256, 2512, 4553, 9106, 18212, 36424, 72848, 276239, 552478, 1104956, 2209912, 4419824, 8010931, 16021862, 32043724, 43369523, 64087448, 86739046, 128174896, 173478092, 346956184, 693912368, 1257716167, 2515432334, 5030864668, 10061729336, 20123458672]

約数ペア:

[(1, 20123458672), (2, 10061729336), (4, 5030864668), (8, 2515432334), (16, 1257716167), (29, 693912368), (58, 346956184), (116, 173478092), (157, 128174896), (232, 86739046), (314, 64087448), (464, 43369523), (628, 32043724), (1256, 16021862), (2512, 8010931), (4553, 4419824), (9106, 2209912), (18212, 1104956), (36424, 552478), (72848, 276239)]