78142040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 184973760

約数和(自身を除く): 106831720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 157, 184, 230, 314, 460, 541, 628, 785, 920, 1082, 1256, 1570, 2164, 2705, 3140, 3611, 4328, 5410, 6280, 7222, 10820, 12443, 14444, 18055, 21640, 24886, 28888, 36110, 49772, 62215, 72220, 84937, 99544, 124430, 144440, 169874, 248860, 339748, 424685, 497720, 679496, 849370, 1698740, 1953551, 3397480, 3907102, 7814204, 9767755, 15628408, 19535510, 39071020, 78142040]

約数ペア:

[(1, 78142040), (2, 39071020), (4, 19535510), (5, 15628408), (8, 9767755), (10, 7814204), (20, 3907102), (23, 3397480), (40, 1953551), (46, 1698740), (92, 849370), (115, 679496), (157, 497720), (184, 424685), (230, 339748), (314, 248860), (460, 169874), (541, 144440), (628, 124430), (785, 99544), (920, 84937), (1082, 72220), (1256, 62215), (1570, 49772), (2164, 36110), (2705, 28888), (3140, 24886), (3611, 21640), (4328, 18055), (5410, 14444), (6280, 12443), (7222, 10820)]