870817040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{265493}}^1$

素因数の和:265547

約数の個数: 40

約数和(自身を含む): 2074039128

約数和(自身を除く): 1203222088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 265493, 530986, 1061972, 1327465, 2123944, 2654930, 4247888, 5309860, 10619720, 10885213, 21239440, 21770426, 43540852, 54426065, 87081704, 108852130, 174163408, 217704260, 435408520, 870817040]

約数ペア:

[(1, 870817040), (2, 435408520), (4, 217704260), (5, 174163408), (8, 108852130), (10, 87081704), (16, 54426065), (20, 43540852), (40, 21770426), (41, 21239440), (80, 10885213), (82, 10619720), (164, 5309860), (205, 4247888), (328, 2654930), (410, 2123944), (656, 1327465), (820, 1061972), (1640, 530986), (3280, 265493)]