154953740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{997}}^1$

素因数の和:1434

約数の個数: 48

約数和(自身を含む): 343711200

約数和(自身を除く): 188757460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 409, 818, 997, 1636, 1994, 2045, 3988, 4090, 4985, 7771, 8180, 9970, 15542, 18943, 19940, 31084, 37886, 38855, 75772, 77710, 94715, 155420, 189430, 378860, 407773, 815546, 1631092, 2038865, 4077730, 7747687, 8155460, 15495374, 30990748, 38738435, 77476870, 154953740]

約数ペア:

[(1, 154953740), (2, 77476870), (4, 38738435), (5, 30990748), (10, 15495374), (19, 8155460), (20, 7747687), (38, 4077730), (76, 2038865), (95, 1631092), (190, 815546), (380, 407773), (409, 378860), (818, 189430), (997, 155420), (1636, 94715), (1994, 77710), (2045, 75772), (3988, 38855), (4090, 37886), (4985, 31084), (7771, 19940), (8180, 18943), (9970, 15542)]