78421360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51593}}^1$

素因数の和:51625

約数の個数: 40

約数和(自身を含む): 191929680

約数和(自身を除く): 113508320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51593, 103186, 206372, 257965, 412744, 515930, 825488, 980267, 1031860, 1960534, 2063720, 3921068, 4127440, 4901335, 7842136, 9802670, 15684272, 19605340, 39210680, 78421360]

約数ペア:

[(1, 78421360), (2, 39210680), (4, 19605340), (5, 15684272), (8, 9802670), (10, 7842136), (16, 4901335), (19, 4127440), (20, 3921068), (38, 2063720), (40, 1960534), (76, 1031860), (80, 980267), (95, 825488), (152, 515930), (190, 412744), (304, 257965), (380, 206372), (760, 103186), (1520, 51593)]