1268707940

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 2684813040

約数和(自身を除く): 1416105100

約数列:

[1, 2, 4, 5, 10, 20, 313, 389, 521, 626, 778, 1042, 1252, 1556, 1565, 1945, 2084, 2605, 3130, 3890, 5210, 6260, 7780, 10420, 121757, 163073, 202669, 243514, 326146, 405338, 487028, 608785, 652292, 810676, 815365, 1013345, 1217570, 1630730, 2026690, 2435140, 3261460, 4053380, 63435397, 126870794, 253741588, 317176985, 634353970, 1268707940]

約数ペア:

[(1, 1268707940), (2, 634353970), (4, 317176985), (5, 253741588), (10, 126870794), (20, 63435397), (313, 4053380), (389, 3261460), (521, 2435140), (626, 2026690), (778, 1630730), (1042, 1217570), (1252, 1013345), (1556, 815365), (1565, 810676), (1945, 652292), (2084, 608785), (2605, 487028), (3130, 405338), (3890, 326146), (5210, 243514), (6260, 202669), (7780, 163073), (10420, 121757)]