12991330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1327}}^1$

素因数の和:1434

約数の個数: 32

約数和(自身を含む): 25816320

約数和(自身を除く): 12824990

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1327, 1958, 2654, 4895, 6635, 9790, 13270, 14597, 29194, 72985, 118103, 145970, 236206, 590515, 1181030, 1299133, 2598266, 6495665, 12991330]

約数ペア:

[(1, 12991330), (2, 6495665), (5, 2598266), (10, 1299133), (11, 1181030), (22, 590515), (55, 236206), (89, 145970), (110, 118103), (178, 72985), (445, 29194), (890, 14597), (979, 13270), (1327, 9790), (1958, 6635), (2654, 4895)]