199181944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61781}}^1$

素因数の和:61831

約数の個数: 32

約数和(自身を含む): 415175040

約数和(自身を除く): 215993096

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 61781, 123562, 247124, 494248, 803153, 1606306, 1915211, 3212612, 3830422, 6425224, 7660844, 15321688, 24897743, 49795486, 99590972, 199181944]

約数ペア:

[(1, 199181944), (2, 99590972), (4, 49795486), (8, 24897743), (13, 15321688), (26, 7660844), (31, 6425224), (52, 3830422), (62, 3212612), (104, 1915211), (124, 1606306), (248, 803153), (403, 494248), (806, 247124), (1612, 123562), (3224, 61781)]