8161780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1613}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 19522944

約数和(自身を除く): 11361164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 1613, 2530, 3226, 5060, 6452, 8065, 16130, 17743, 32260, 35486, 37099, 70972, 74198, 88715, 148396, 177430, 185495, 354860, 370990, 408089, 741980, 816178, 1632356, 2040445, 4080890, 8161780]

約数ペア:

[(1, 8161780), (2, 4080890), (4, 2040445), (5, 1632356), (10, 816178), (11, 741980), (20, 408089), (22, 370990), (23, 354860), (44, 185495), (46, 177430), (55, 148396), (92, 88715), (110, 74198), (115, 70972), (220, 37099), (230, 35486), (253, 32260), (460, 17743), (506, 16130), (1012, 8065), (1265, 6452), (1613, 5060), (2530, 3226)]