31281380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5231}}^1$

素因数の和:5276

約数の個数: 48

約数和(自身を含む): 73833984

約数和(自身を除く): 42552604

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5231, 5980, 10462, 20924, 26155, 52310, 68003, 104620, 120313, 136006, 240626, 272012, 340015, 481252, 601565, 680030, 1203130, 1360060, 1564069, 2406260, 3128138, 6256276, 7820345, 15640690, 31281380]

約数ペア:

[(1, 31281380), (2, 15640690), (4, 7820345), (5, 6256276), (10, 3128138), (13, 2406260), (20, 1564069), (23, 1360060), (26, 1203130), (46, 680030), (52, 601565), (65, 481252), (92, 340015), (115, 272012), (130, 240626), (230, 136006), (260, 120313), (299, 104620), (460, 68003), (598, 52310), (1196, 26155), (1495, 20924), (2990, 10462), (5231, 5980)]