78949040

素因数分解:

$2^4\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2689}}^1$

素因数の和:3069

約数の個数: 40

約数和(自身を含む): 184125120

約数和(自身を除く): 105176080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 367, 734, 1468, 1835, 2689, 2936, 3670, 5378, 5872, 7340, 10756, 13445, 14680, 21512, 26890, 29360, 43024, 53780, 107560, 215120, 986863, 1973726, 3947452, 4934315, 7894904, 9868630, 15789808, 19737260, 39474520, 78949040]

約数ペア:

[(1, 78949040), (2, 39474520), (4, 19737260), (5, 15789808), (8, 9868630), (10, 7894904), (16, 4934315), (20, 3947452), (40, 1973726), (80, 986863), (367, 215120), (734, 107560), (1468, 53780), (1835, 43024), (2689, 29360), (2936, 26890), (3670, 21512), (5378, 14680), (5872, 13445), (7340, 10756)]