78998960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51973}}^1$

素因数の和:52005

約数の個数: 40

約数和(自身を含む): 193343280

約数和(自身を除く): 114344320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51973, 103946, 207892, 259865, 415784, 519730, 831568, 987487, 1039460, 1974974, 2078920, 3949948, 4157840, 4937435, 7899896, 9874870, 15799792, 19749740, 39499480, 78998960]

約数ペア:

[(1, 78998960), (2, 39499480), (4, 19749740), (5, 15799792), (8, 9874870), (10, 7899896), (16, 4937435), (19, 4157840), (20, 3949948), (38, 2078920), (40, 1974974), (76, 1039460), (80, 987487), (95, 831568), (152, 519730), (190, 415784), (304, 259865), (380, 207892), (760, 103946), (1520, 51973)]