19952080

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{541}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 46575144

約数和(自身を除く): 26623064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 541, 922, 1082, 1844, 2164, 2305, 2705, 3688, 4328, 4610, 5410, 7376, 8656, 9220, 10820, 18440, 21640, 36880, 43280, 249401, 498802, 997604, 1247005, 1995208, 2494010, 3990416, 4988020, 9976040, 19952080]

約数ペア:

[(1, 19952080), (2, 9976040), (4, 4988020), (5, 3990416), (8, 2494010), (10, 1995208), (16, 1247005), (20, 997604), (40, 498802), (80, 249401), (461, 43280), (541, 36880), (922, 21640), (1082, 18440), (1844, 10820), (2164, 9220), (2305, 8656), (2705, 7376), (3688, 5410), (4328, 4610)]