20273560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 47472480

約数和(自身を除く): 27198920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 73, 106, 131, 146, 212, 262, 265, 292, 365, 424, 524, 530, 584, 655, 730, 1048, 1060, 1310, 1460, 2120, 2620, 2920, 3869, 5240, 6943, 7738, 9563, 13886, 15476, 19126, 19345, 27772, 30952, 34715, 38252, 38690, 47815, 55544, 69430, 76504, 77380, 95630, 138860, 154760, 191260, 277720, 382520, 506839, 1013678, 2027356, 2534195, 4054712, 5068390, 10136780, 20273560]

約数ペア:

[(1, 20273560), (2, 10136780), (4, 5068390), (5, 4054712), (8, 2534195), (10, 2027356), (20, 1013678), (40, 506839), (53, 382520), (73, 277720), (106, 191260), (131, 154760), (146, 138860), (212, 95630), (262, 77380), (265, 76504), (292, 69430), (365, 55544), (424, 47815), (524, 38690), (530, 38252), (584, 34715), (655, 30952), (730, 27772), (1048, 19345), (1060, 19126), (1310, 15476), (1460, 13886), (2120, 9563), (2620, 7738), (2920, 6943), (3869, 5240)]