86439440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17713}}^1$

素因数の和:17787

約数の個数: 40

約数和(自身を含む): 204277848

約数和(自身を除く): 117838408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 17713, 35426, 70852, 88565, 141704, 177130, 283408, 354260, 708520, 1080493, 1417040, 2160986, 4321972, 5402465, 8643944, 10804930, 17287888, 21609860, 43219720, 86439440]

約数ペア:

[(1, 86439440), (2, 43219720), (4, 21609860), (5, 17287888), (8, 10804930), (10, 8643944), (16, 5402465), (20, 4321972), (40, 2160986), (61, 1417040), (80, 1080493), (122, 708520), (244, 354260), (305, 283408), (488, 177130), (610, 141704), (976, 88565), (1220, 70852), (2440, 35426), (4880, 17713)]