20289830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1327}}^1$

素因数の和:1484

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 19868890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1327, 1390, 1529, 2654, 3058, 6635, 7645, 13270, 14597, 15290, 29194, 72985, 145970, 184453, 368906, 922265, 1844530, 2028983, 4057966, 10144915, 20289830]

約数ペア:

[(1, 20289830), (2, 10144915), (5, 4057966), (10, 2028983), (11, 1844530), (22, 922265), (55, 368906), (110, 184453), (139, 145970), (278, 72985), (695, 29194), (1327, 15290), (1390, 14597), (1529, 13270), (2654, 7645), (3058, 6635)]