155347640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79259}}^1$

素因数の和:79284

約数の個数: 48

約数和(自身を含む): 406603800

約数和(自身を除く): 251256160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 79259, 158518, 317036, 396295, 554813, 634072, 792590, 1109626, 1585180, 2219252, 2774065, 3170360, 3883691, 4438504, 5548130, 7767382, 11096260, 15534764, 19418455, 22192520, 31069528, 38836910, 77673820, 155347640]

約数ペア:

[(1, 155347640), (2, 77673820), (4, 38836910), (5, 31069528), (7, 22192520), (8, 19418455), (10, 15534764), (14, 11096260), (20, 7767382), (28, 5548130), (35, 4438504), (40, 3883691), (49, 3170360), (56, 2774065), (70, 2219252), (98, 1585180), (140, 1109626), (196, 792590), (245, 634072), (280, 554813), (392, 396295), (490, 317036), (980, 158518), (1960, 79259)]